diff --git a/src/wp-admin/includes/admin-filters.php b/src/wp-admin/includes/admin-filters.php
new file mode 100644
index 0000000000..fb4f5dd7de
--- /dev/null
+++ b/src/wp-admin/includes/admin-filters.php
@@ -0,0 +1,107 @@
+<?php
+/**
+ *  Administration hooks
+ *
+ * @package WordPress
+ *
+ * @since 4.3.0
+ */
+
+/** Bookmark hooks */
+add_action( 'admin_page_access_denied', 'wp_link_manager_disabled_message' );
+
+/** Dashboard hooks */
+add_action( 'activity_box_end', 'wp_dashboard_quota' );
+
+/** Media hooks */
+add_filter( 'media_upload_tabs', 'update_gallery_tab' );
+add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
+add_action( 'media_buttons', 'media_buttons' );
+
+add_filter( 'attachment_fields_to_save', 'image_attachment_fields_to_save', 10, 2 );
+add_filter( 'media_send_to_editor', 'image_media_send_to_editor', 10, 3 );
+
+add_action( 'post-plupload-upload-ui', 'media_upload_flash_bypass' );
+add_action( 'post-html-upload-ui', 'media_upload_html_bypass' );
+add_filter( 'async_upload_image', 'get_media_item', 10, 2 );
+add_filter( 'async_upload_audio', 'get_media_item', 10, 2 );
+add_filter( 'async_upload_video', 'get_media_item', 10, 2 );
+add_filter( 'async_upload_file',  'get_media_item', 10, 2 );
+
+add_action( 'media_upload_image', 'wp_media_upload_handler' );
+add_action( 'media_upload_audio', 'wp_media_upload_handler' );
+add_action( 'media_upload_video', 'wp_media_upload_handler' );
+add_action( 'media_upload_file',  'wp_media_upload_handler' );
+
+add_filter( 'media_upload_gallery', 'media_upload_gallery' );
+add_filter( 'media_upload_library', 'media_upload_library' );
+
+add_action( 'attachment_submitbox_misc_actions', 'attachment_submitbox_metadata' );
+
+/** Misc hooks */
+add_action( 'update_option_home', 'update_home_siteurl', 10, 2 );
+add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 );
+add_action( 'update_option_page_on_front', 'update_home_siteurl', 10, 2 );
+add_action( 'admin_head', 'wp_color_scheme_settings' );
+add_action( 'admin_head', '_ipad_meta' );
+add_filter( 'heartbeat_received', 'wp_check_locked_posts', 10, 3 );
+add_filter( 'heartbeat_received', 'wp_refresh_post_lock', 10, 3 );
+add_filter( 'heartbeat_received', 'wp_refresh_post_nonces', 10, 3 );
+add_filter( 'heartbeat_settings', 'wp_heartbeat_set_suspension' );
+// Run later as we have to set DOING_AUTOSAVE for back-compat
+add_filter( 'heartbeat_received', 'heartbeat_autosave', 500, 2 );
+add_action( 'post_edit_form_tag', 'post_form_autocomplete_off' );
+add_action( 'admin_head', 'wp_admin_canonical_url' );
+
+/** Nav Menu hooks */
+add_action( 'admin_head-nav-menus.php', '_wp_delete_orphaned_draft_menu_items' );
+
+/** Plugin hooks */
+add_filter( 'whitelist_options', 'option_update_filter' );
+
+/** Plugin Install hooks */
+add_action( 'install_plugins_featured',               'install_dashboard' );
+add_action( 'install_plugins_upload',                 'install_plugins_upload' );
+add_action( 'install_plugins_search',                 'display_plugins_table' );
+add_action( 'install_plugins_popular',                'display_plugins_table' );
+add_action( 'install_plugins_recommended',            'display_plugins_table' );
+add_action( 'install_plugins_new',                    'display_plugins_table' );
+add_action( 'install_plugins_beta',                   'display_plugins_table' );
+add_action( 'install_plugins_favorites',              'display_plugins_table' );
+add_action( 'install_plugins_pre_plugin-information', 'install_plugin_information' );
+
+/** Template hooks */
+add_action( 'admin_enqueue_scripts', array( 'WP_Internal_Pointers', 'enqueue_scripts'                ) );
+add_action( 'user_register',         array( 'WP_Internal_Pointers', 'dismiss_pointers_for_new_users' ) );
+
+/** Theme hooks */
+add_action( 'customize_controls_print_footer_scripts', 'customize_themes_print_templates' );
+
+/** Theme Install hooks */
+// add_action('install_themes_dashboard', 'install_themes_dashboard');
+// add_action('install_themes_upload', 'install_themes_upload', 10, 0);
+// add_action('install_themes_search', 'display_themes');
+// add_action('install_themes_featured', 'display_themes');
+// add_action('install_themes_new', 'display_themes');
+// add_action('install_themes_updated', 'display_themes');
+add_action( 'install_themes_pre_theme-information', 'install_theme_information' );
+
+/** User hooks */
+add_action( 'admin_init', 'default_password_nag_handler' );
+add_action( 'profile_update', 'default_password_nag_edit_user', 10, 2 );
+add_action( 'admin_notices', 'default_password_nag' );
+
+/** Update hooks */
+add_filter( 'update_footer', 'core_update_footer' );
+add_action( 'admin_notices', 'update_nag', 3 );
+add_action( 'network_admin_notices', 'update_nag', 3 );
+add_action( 'admin_init', 'wp_plugin_update_rows' );
+add_action( 'admin_init', 'wp_theme_update_rows' );
+add_action( 'admin_notices', 'maintenance_nag' );
+add_action( 'network_admin_notices', 'maintenance_nag' );
+
+/** Update Core hooks */
+add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );
+
+/** Upgrade hooks */
+add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
\ No newline at end of file
diff --git a/src/wp-admin/includes/admin.php b/src/wp-admin/includes/admin.php
index f1fc8cb003..426bb412dc 100644
--- a/src/wp-admin/includes/admin.php
+++ b/src/wp-admin/includes/admin.php
@@ -15,6 +15,9 @@ if ( ! defined('WP_ADMIN') ) {
 	load_textdomain( 'default', WP_LANG_DIR . '/admin-' . get_locale() . '.mo' );
 }
 
+/** WordPress Administration Hooks */
+require_once(ABSPATH . 'wp-admin/includes/admin-filters.php');
+
 /** WordPress Bookmark Administration API */
 require_once(ABSPATH . 'wp-admin/includes/bookmark.php');
 
@@ -69,6 +72,7 @@ require_once(ABSPATH . 'wp-admin/includes/deprecated.php');
 
 /** WordPress Multisite support API */
 if ( is_multisite() ) {
+	require_once(ABSPATH . 'wp-admin/includes/ms-admin-filters.php');
 	require_once(ABSPATH . 'wp-admin/includes/ms.php');
 	require_once(ABSPATH . 'wp-admin/includes/ms-deprecated.php');
 }
diff --git a/src/wp-admin/includes/bookmark.php b/src/wp-admin/includes/bookmark.php
index 5b97f53e6c..87e1ad8fd6 100644
--- a/src/wp-admin/includes/bookmark.php
+++ b/src/wp-admin/includes/bookmark.php
@@ -116,9 +116,7 @@ function wp_delete_link( $link_id ) {
  * @return array The requested link's categories
  */
 function wp_get_link_cats( $link_id = 0 ) {
-
 	$cats = wp_get_object_terms( $link_id, 'link_category', array('fields' => 'ids') );
-
 	return array_unique( $cats );
 }
 
@@ -308,4 +306,3 @@ function wp_link_manager_disabled_message() {
 
 	wp_die( __( 'You do not have sufficient permissions to edit the links for this site.' ) );
 }
-add_action( 'admin_page_access_denied', 'wp_link_manager_disabled_message' );
diff --git a/src/wp-admin/includes/class-wp-upgrader.php b/src/wp-admin/includes/class-wp-upgrader.php
index 577cbce67d..1f2b1f740f 100644
--- a/src/wp-admin/includes/class-wp-upgrader.php
+++ b/src/wp-admin/includes/class-wp-upgrader.php
@@ -1624,8 +1624,6 @@ class Theme_Upgrader extends WP_Upgrader {
 
 }
 
-add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
-
 /**
  * Language pack upgrader, for updating translations of plugins, themes, and core.
  *
diff --git a/src/wp-admin/includes/dashboard.php b/src/wp-admin/includes/dashboard.php
index f52baff2c7..80255bb6a8 100644
--- a/src/wp-admin/includes/dashboard.php
+++ b/src/wp-admin/includes/dashboard.php
@@ -1197,7 +1197,6 @@ function wp_dashboard_quota() {
 	</div>
 	<?php
 }
-add_action( 'activity_box_end', 'wp_dashboard_quota' );
 
 // Display Browser Nag Meta Box
 function wp_dashboard_browser_nag() {
diff --git a/src/wp-admin/includes/media.php b/src/wp-admin/includes/media.php
index 17e1bf5ce3..88d0728751 100644
--- a/src/wp-admin/includes/media.php
+++ b/src/wp-admin/includes/media.php
@@ -63,7 +63,6 @@ function update_gallery_tab($tabs) {
 
 	return $tabs;
 }
-add_filter('media_upload_tabs', 'update_gallery_tab');
 
 /**
  * {@internal Missing Short Description}}
@@ -220,7 +219,6 @@ function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $
 	 */
 	return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
 }
-add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
 
 /**
  * Private preg_replace callback used in image_add_caption()
@@ -577,7 +575,6 @@ function media_buttons($editor_id = 'content') {
 		echo $legacy_filter;
 	}
 }
-add_action( 'media_buttons', 'media_buttons' );
 
 /**
  *
@@ -1141,8 +1138,6 @@ function image_attachment_fields_to_save( $post, $attachment ) {
 	return $post;
 }
 
-add_filter( 'attachment_fields_to_save', 'image_attachment_fields_to_save', 10, 2 );
-
 /**
  * {@internal Missing Short Description}}
  *
@@ -1168,8 +1163,6 @@ function image_media_send_to_editor($html, $attachment_id, $attachment) {
 	return $html;
 }
 
-add_filter('media_send_to_editor', 'image_media_send_to_editor', 10, 3);
-
 /**
  * {@internal Missing Short Description}}
  *
@@ -2611,7 +2604,6 @@ function media_upload_flash_bypass() {
 	</p>
 	<?php
 }
-add_action('post-plupload-upload-ui', 'media_upload_flash_bypass');
 
 /**
  * Displays the browser's built-in uploader message.
@@ -2625,7 +2617,6 @@ function media_upload_html_bypass() {
 	</p>
 	<?php
 }
-add_action('post-html-upload-ui', 'media_upload_html_bypass');
 
 /**
  * Used to display a "After a file has been uploaded..." help message.
@@ -2908,21 +2899,6 @@ function attachment_submitbox_metadata() {
 	endif;
 }
 
-add_filter( 'async_upload_image', 'get_media_item', 10, 2 );
-add_filter( 'async_upload_audio', 'get_media_item', 10, 2 );
-add_filter( 'async_upload_video', 'get_media_item', 10, 2 );
-add_filter( 'async_upload_file',  'get_media_item', 10, 2 );
-
-add_action( 'media_upload_image', 'wp_media_upload_handler' );
-add_action( 'media_upload_audio', 'wp_media_upload_handler' );
-add_action( 'media_upload_video', 'wp_media_upload_handler' );
-add_action( 'media_upload_file',  'wp_media_upload_handler' );
-
-add_filter( 'media_upload_gallery', 'media_upload_gallery' );
-add_filter( 'media_upload_library', 'media_upload_library' );
-
-add_action( 'attachment_submitbox_misc_actions', 'attachment_submitbox_metadata' );
-
 /**
  * Parse ID3v2, ID3v1, and getID3 comments to extract usable data
  *
diff --git a/src/wp-admin/includes/misc.php b/src/wp-admin/includes/misc.php
index 55c732381f..160f50fb35 100644
--- a/src/wp-admin/includes/misc.php
+++ b/src/wp-admin/includes/misc.php
@@ -250,10 +250,6 @@ function update_home_siteurl( $old_value, $value ) {
 	flush_rewrite_rules();
 }
 
-add_action( 'update_option_home', 'update_home_siteurl', 10, 2 );
-add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 );
-add_action( 'update_option_page_on_front', 'update_home_siteurl', 10, 2 );
-
 /**
  * Shorten an URL, to be used as link text
  *
@@ -679,7 +675,6 @@ function wp_color_scheme_settings() {
 
 	echo '<script type="text/javascript">var _wpColorScheme = ' . wp_json_encode( array( 'icons' => $icon_colors ) ) . ";</script>\n";
 }
-add_action( 'admin_head', 'wp_color_scheme_settings' );
 
 function _ipad_meta() {
 	if ( wp_is_mobile() ) {
@@ -688,7 +683,6 @@ function _ipad_meta() {
 		<?php
 	}
 }
-add_action('admin_head', '_ipad_meta');
 
 /**
  * Check lock status for posts displayed on the Posts screen
@@ -719,7 +713,6 @@ function wp_check_locked_posts( $response, $data, $screen_id ) {
 
 	return $response;
 }
-add_filter( 'heartbeat_received', 'wp_check_locked_posts', 10, 3 );
 
 /**
  * Check lock status on the New/Edit Post screen and refresh the lock
@@ -758,7 +751,6 @@ function wp_refresh_post_lock( $response, $data, $screen_id ) {
 
 	return $response;
 }
-add_filter( 'heartbeat_received', 'wp_refresh_post_lock', 10, 3 );
 
 /**
  * Check nonce expiration on the New/Edit Post screen and refresh if needed
@@ -792,7 +784,6 @@ function wp_refresh_post_nonces( $response, $data, $screen_id ) {
 
 	return $response;
 }
-add_filter( 'heartbeat_received', 'wp_refresh_post_nonces', 10, 3 );
 
 /**
  * Disable suspension of Heartbeat on the Add/Edit Post screens.
@@ -813,7 +804,6 @@ function wp_heartbeat_set_suspension( $settings ) {
 
 	return $settings;
 }
-add_filter( 'heartbeat_settings', 'wp_heartbeat_set_suspension' );
 
 /**
  * Autosave with heartbeat
@@ -838,8 +828,6 @@ function heartbeat_autosave( $response, $data ) {
 
 	return $response;
 }
-// Run later as we have to set DOING_AUTOSAVE for back-compat
-add_filter( 'heartbeat_received', 'heartbeat_autosave', 500, 2 );
 
 /**
  * Disables autocomplete on the 'post' form (Add/Edit Post screens) for WebKit browsers,
@@ -858,7 +846,6 @@ function post_form_autocomplete_off() {
 		echo ' autocomplete="off"';
 	}
 }
-add_action( 'post_edit_form_tag', 'post_form_autocomplete_off' );
 
 /**
  * Remove single-use URL parameters and create canonical link based on new URL.
@@ -903,4 +890,3 @@ function wp_admin_canonical_url() {
 	</script>
 <?php
 }
-add_action( 'admin_head', 'wp_admin_canonical_url' );
diff --git a/src/wp-admin/includes/ms-admin-filters.php b/src/wp-admin/includes/ms-admin-filters.php
new file mode 100644
index 0000000000..b77c103fc1
--- /dev/null
+++ b/src/wp-admin/includes/ms-admin-filters.php
@@ -0,0 +1,30 @@
+<?php
+/**
+ * Multisite Administration hooks
+ *
+ * @package WordPress
+ *
+ * @since 4.3.0
+ */
+
+add_filter( 'wp_handle_upload_prefilter', 'check_upload_size' );
+
+add_action( 'update_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
+add_action( 'add_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
+
+add_action( 'personal_options_update', 'send_confirmation_on_profile_email' );
+
+add_action( 'admin_notices', 'new_user_email_admin_notice' );
+
+add_action( 'wpmueditblogaction', 'upload_space_setting' );
+
+add_filter( 'get_term', 'sync_category_tag_slugs', 10, 2 );
+
+add_action( 'admin_page_access_denied', '_access_denied_splash', 99 );
+
+add_filter( 'import_allow_create_users', 'check_import_new_users' );
+
+add_action( 'admin_notices', 'site_admin_notice' );
+add_action( 'network_admin_notices', 'site_admin_notice' );
+
+add_filter( 'wp_insert_post_data', 'avoid_blog_page_permalink_collision', 10, 2 );
diff --git a/src/wp-admin/includes/ms.php b/src/wp-admin/includes/ms.php
index 2b7c7a3138..38a589cae0 100644
--- a/src/wp-admin/includes/ms.php
+++ b/src/wp-admin/includes/ms.php
@@ -41,7 +41,6 @@ function check_upload_size( $file ) {
 
 	return $file;
 }
-add_filter( 'wp_handle_upload_prefilter', 'check_upload_size' );
 
 /**
  * Delete a blog.
@@ -300,8 +299,6 @@ All at ###SITENAME###
 
 	wp_mail( $value, sprintf( __( '[%s] New Admin Email Address' ), wp_specialchars_decode( get_option( 'blogname' ) ) ), $content );
 }
-add_action( 'update_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
-add_action( 'add_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
 
 /**
  * Sends an email when an email address change is requested.
@@ -383,7 +380,6 @@ All at ###SITENAME###
 		$_POST['email'] = $current_user->user_email;
 	}
 }
-add_action( 'personal_options_update', 'send_confirmation_on_profile_email' );
 
 /**
  * Adds an admin notice alerting the user to check for confirmation email
@@ -395,7 +391,6 @@ function new_user_email_admin_notice() {
 	if ( strpos( $_SERVER['PHP_SELF'], 'profile.php' ) && isset( $_GET['updated'] ) && $email = get_option( get_current_user_id() . '_new_email' ) )
 		echo "<div class='update-nag'>" . sprintf( __( "Your email address has not been updated yet. Please check your inbox at %s for a confirmation email." ), $email['newemail'] ) . "</div>";
 }
-add_action( 'admin_notices', 'new_user_email_admin_notice' );
 
 /**
  * Check whether a blog has used its allotted upload space.
@@ -490,7 +485,6 @@ function upload_space_setting( $id ) {
 	</tr>
 	<?php
 }
-add_action( 'wpmueditblogaction', 'upload_space_setting' );
 
 /**
  * Update the status of a user in the database.
@@ -621,7 +615,6 @@ function sync_category_tag_slugs( $term, $taxonomy ) {
 	}
 	return $term;
 }
-add_filter( 'get_term', 'sync_category_tag_slugs', 10, 2 );
 
 /**
  * Displays an access denied message when a user tries to view a site's dashboard they
@@ -662,7 +655,6 @@ function _access_denied_splash() {
 
 	wp_die( $output, 403 );
 }
-add_action( 'admin_page_access_denied', '_access_denied_splash', 99 );
 
 /**
  * Checks if the current user has permissions to import new users.
@@ -677,7 +669,6 @@ function check_import_new_users( $permission ) {
 		return false;
 	return true;
 }
-add_filter( 'import_allow_create_users', 'check_import_new_users' );
 // See "import_allow_fetch_attachments" and "import_attachment_size_limit" filters too.
 
 /**
@@ -746,8 +737,6 @@ function site_admin_notice() {
 	if ( get_site_option( 'wpmu_upgrade_site' ) != $wp_db_version )
 		echo "<div class='update-nag'>" . sprintf( __( 'Thank you for Updating! Please visit the <a href="%s">Upgrade Network</a> page to update all your sites.' ), esc_url( network_admin_url( 'upgrade.php' ) ) ) . "</div>";
 }
-add_action( 'admin_notices', 'site_admin_notice' );
-add_action( 'network_admin_notices', 'site_admin_notice' );
 
 /**
  * Avoids a collision between a site slug and a permalink slug.
@@ -782,7 +771,6 @@ function avoid_blog_page_permalink_collision( $data, $postarr ) {
 	}
 	return $data;
 }
-add_filter( 'wp_insert_post_data', 'avoid_blog_page_permalink_collision', 10, 2 );
 
 /**
  * Handles the display of choosing a user's primary site.
diff --git a/src/wp-admin/includes/nav-menu.php b/src/wp-admin/includes/nav-menu.php
index a12181ee71..78ef95f3a6 100644
--- a/src/wp-admin/includes/nav-menu.php
+++ b/src/wp-admin/includes/nav-menu.php
@@ -1254,7 +1254,6 @@ function _wp_delete_orphaned_draft_menu_items() {
 	foreach( (array) $menu_items_to_delete as $menu_item_id )
 		wp_delete_post( $menu_item_id, true );
 }
-add_action('admin_head-nav-menus.php', '_wp_delete_orphaned_draft_menu_items');
 
 /**
  * Saves nav menu items
diff --git a/src/wp-admin/includes/plugin-install.php b/src/wp-admin/includes/plugin-install.php
index ac3f5b69ba..f27acf2c23 100644
--- a/src/wp-admin/includes/plugin-install.php
+++ b/src/wp-admin/includes/plugin-install.php
@@ -158,7 +158,6 @@ function install_dashboard() {
 	}
 	echo '</p><br class="clear" />';
 }
-add_action( 'install_plugins_featured', 'install_dashboard' );
 
 /**
  * Display search form for searching plugins.
@@ -209,7 +208,6 @@ function install_plugins_upload() {
 </div>
 <?php
 }
-add_action('install_plugins_upload', 'install_plugins_upload' );
 
 /**
  * Show a username form for the favorites page
@@ -258,12 +256,6 @@ function display_plugins_table() {
 	</form>
 	<?php
 }
-add_action( 'install_plugins_search',      'display_plugins_table' );
-add_action( 'install_plugins_popular',     'display_plugins_table' );
-add_action( 'install_plugins_recommended', 'display_plugins_table' );
-add_action( 'install_plugins_new',         'display_plugins_table' );
-add_action( 'install_plugins_beta',        'display_plugins_table' );
-add_action( 'install_plugins_favorites',   'display_plugins_table' );
 
 /**
  * Determine the status we can perform on a plugin.
@@ -582,4 +574,3 @@ function install_plugin_information() {
 	iframe_footer();
 	exit;
 }
-add_action('install_plugins_pre_plugin-information', 'install_plugin_information');
diff --git a/src/wp-admin/includes/plugin.php b/src/wp-admin/includes/plugin.php
index 83de6b68e9..e1a07dc4e7 100644
--- a/src/wp-admin/includes/plugin.php
+++ b/src/wp-admin/includes/plugin.php
@@ -1852,7 +1852,6 @@ function option_update_filter( $options ) {
 
 	return $options;
 }
-add_filter( 'whitelist_options', 'option_update_filter' );
 
 /**
  * {@internal Missing Short Description}}
diff --git a/src/wp-admin/includes/template.php b/src/wp-admin/includes/template.php
index 84ee164edb..0ae19d02d9 100644
--- a/src/wp-admin/includes/template.php
+++ b/src/wp-admin/includes/template.php
@@ -2186,9 +2186,6 @@ final class WP_Internal_Pointers {
 	}
 }
 
-add_action( 'admin_enqueue_scripts', array( 'WP_Internal_Pointers', 'enqueue_scripts'                ) );
-add_action( 'user_register',         array( 'WP_Internal_Pointers', 'dismiss_pointers_for_new_users' ) );
-
 /**
  * Convert a screen string to a screen object
  *
diff --git a/src/wp-admin/includes/theme-install.php b/src/wp-admin/includes/theme-install.php
index c7d9160ea2..9de0451875 100644
--- a/src/wp-admin/includes/theme-install.php
+++ b/src/wp-admin/includes/theme-install.php
@@ -132,7 +132,6 @@ function install_themes_dashboard() {
 </form>
 <?php
 }
-// add_action('install_themes_dashboard', 'install_themes_dashboard');
 
 function install_themes_upload() {
 ?>
@@ -144,7 +143,6 @@ function install_themes_upload() {
 </form>
 	<?php
 }
-// add_action('install_themes_upload', 'install_themes_upload', 10, 0);
 
 /**
  * Prints a theme on the Install Themes pages.
@@ -180,10 +178,6 @@ function display_themes() {
 	$wp_list_table->display();
 
 }
-// add_action('install_themes_search', 'display_themes');
-// add_action('install_themes_featured', 'display_themes');
-// add_action('install_themes_new', 'display_themes');
-// add_action('install_themes_updated', 'display_themes');
 
 /**
  * Display theme information in dialog box form.
@@ -208,4 +202,3 @@ function install_theme_information() {
 	iframe_footer();
 	exit;
 }
-add_action('install_themes_pre_theme-information', 'install_theme_information');
diff --git a/src/wp-admin/includes/theme.php b/src/wp-admin/includes/theme.php
index fe35006dcc..608c865055 100644
--- a/src/wp-admin/includes/theme.php
+++ b/src/wp-admin/includes/theme.php
@@ -565,4 +565,3 @@ function customize_themes_print_templates() {
 	</script>
 	<?php
 }
-add_action( 'customize_controls_print_footer_scripts', 'customize_themes_print_templates' );
diff --git a/src/wp-admin/includes/update-core.php b/src/wp-admin/includes/update-core.php
index 1dc1a4ca5e..7526082ee8 100644
--- a/src/wp-admin/includes/update-core.php
+++ b/src/wp-admin/includes/update-core.php
@@ -1210,7 +1210,6 @@ window.location = 'about.php?updated';
 	include(ABSPATH . 'wp-admin/admin-footer.php');
 	exit();
 }
-add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );
 
 /**
  * Cleans up Genericons example files.
diff --git a/src/wp-admin/includes/update.php b/src/wp-admin/includes/update.php
index 3dfea9fcbc..9dc9ad297f 100644
--- a/src/wp-admin/includes/update.php
+++ b/src/wp-admin/includes/update.php
@@ -188,7 +188,6 @@ function core_update_footer( $msg = '' ) {
 		return sprintf( __( 'Version %s' ), get_bloginfo( 'version', 'display' ) );
 	}
 }
-add_filter( 'update_footer', 'core_update_footer' );
 
 /**
  *
@@ -216,8 +215,6 @@ function update_nag() {
 	}
 	echo "<div class='update-nag'>$msg</div>";
 }
-add_action( 'admin_notices', 'update_nag', 3 );
-add_action( 'network_admin_notices', 'update_nag', 3 );
 
 // Called directly from dashboard
 function update_right_now_message() {
@@ -266,7 +263,6 @@ function wp_plugin_update_rows() {
 		}
 	}
 }
-add_action( 'admin_init', 'wp_plugin_update_rows' );
 
 function wp_plugin_update_row( $file, $plugin_data ) {
 	$current = get_site_transient( 'update_plugins' );
@@ -362,7 +358,6 @@ function wp_theme_update_rows() {
 		}
 	}
 }
-add_action( 'admin_init', 'wp_theme_update_rows' );
 
 function wp_theme_update_row( $theme_key, $theme ) {
 	$current = get_site_transient( 'update_themes' );
@@ -441,5 +436,3 @@ function maintenance_nag() {
 
 	echo "<div class='update-nag'>$msg</div>";
 }
-add_action( 'admin_notices', 'maintenance_nag' );
-add_action( 'network_admin_notices', 'maintenance_nag' );
diff --git a/src/wp-admin/includes/user.php b/src/wp-admin/includes/user.php
index 0928392a8a..65949a0278 100644
--- a/src/wp-admin/includes/user.php
+++ b/src/wp-admin/includes/user.php
@@ -386,7 +386,6 @@ function wp_revoke_user($id) {
 	$user->remove_all_caps();
 }
 
-add_action('admin_init', 'default_password_nag_handler');
 /**
  * @since 2.8.0
  */
@@ -409,8 +408,6 @@ function default_password_nag_handler($errors = false) {
 	}
 }
 
-add_action('profile_update', 'default_password_nag_edit_user', 10, 2);
-
 /**
  * @since 2.8.0
  */
@@ -428,8 +425,6 @@ function default_password_nag_edit_user($user_ID, $old_data) {
 	}
 }
 
-add_action('admin_notices', 'default_password_nag');
-
 /**
  * @since 2.8.0
  *