Remove zero-byte files that were meant to be deleted in [23446]. see #23486.

Merges [25013] to the 3.6 branch.

Built from https://develop.svn.wordpress.org/branches/3.6@25014


git-svn-id: http://core.svn.wordpress.org/branches/3.6@25007 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/update-core.php

@@ -554,6 +554,10 @@ $_old_files = array(
 // 3.6
 'wp-admin/js/revisions-js.php',
 'wp-admin/images/screenshots',
+'wp-admin/js/categories.js',
+'wp-admin/js/categories.min.js',
+'wp-admin/js/custom-fields.js',
+'wp-admin/js/custom-fields.min.js',
 );
 
 /**