Remove remains from the old bookmarklet code

git-svn-id: https://develop.svn.wordpress.org/trunk@12029 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/edit-form-advanced.php

@@ -128,10 +128,6 @@ require_once('admin-header.php');
 
 ?>
 
-<?php if ( (isset($mode) && 'bookmarklet' == $mode) || isset($_GET['popupurl']) ): ?>
-<input type="hidden" name="mode" value="bookmarklet" />
-<?php endif; ?>
-
 <div class="wrap">
 <?php screen_icon(); ?>
 <h2><?php echo esc_html( $title ); ?></h2>