In the style of #30947 and default-filters.php, add 2 new files to wp-admin/includes:

`admin-filters.php`
`ms-admin-filters.php`

There are random actions and filters littered among files like `misc.php`. These files contain functions that won't work outside of admin context and are typically only loaded in files that have already loaded the admin bootstrap.

See #32529.


git-svn-id: https://develop.svn.wordpress.org/trunk@32653 602fd350-edb4-49c9-b593-d223f7449a82

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' );