Remove many of the now-unused images in core. Some images have been left for now, notably our previous style icons, action indicators, and images that see a higher frequency of use in plugins to allow them more time to adapt to the new design. props ocean90, Ipstenu, coffee2code. fixes #26036.

git-svn-id: https://develop.svn.wordpress.org/trunk@26821 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/update-core.php

@@ -567,6 +567,33 @@ $_old_files = array(
 'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/page_bug.gif',
 'wp-includes/js/thickbox/tb-close.png',
 'wp-includes/js/thickbox/tb-close-2x.png',
+'wp-admin/images/arrows-dark-2x.png',
+'wp-admin/images/arrows-dark-vs-2x.png',
+'wp-admin/images/arrows-dark-vs.png',
+'wp-admin/images/arrows-dark.png',
+'wp-admin/images/arrows-pr-2x.png',
+'wp-admin/images/arrows-pr.png',
+'wp-admin/images/arrows-vs-2x.png',
+'wp-admin/images/arrows-vs.png',
+'wp-admin/images/bubble_bg-rtl-2x.gif',
+'wp-admin/images/bubble_bg-rtl.gif',
+'wp-admin/images/menu-shadow-rtl.png',
+'wp-admin/images/menu-shadow.png',
+'wp-admin/images/press-this-2x.png',
+'wp-admin/images/press-this.png',
+'wp-admin/images/stars-rtl-2x.png',
+'wp-admin/images/stars-rtl.png',
+'wp-admin/images/welcome-icons-2x.png',
+'wp-admin/images/welcome-icons.png',
+'wp-admin/images/wordpress-logo-2x.png',
+'wp-admin/images/wp-badge-2x.png',
+'wp-admin/images/wp-badge.png',
+'wp-admin/images/wp-logo-2x.png',
+'wp-admin/images/wp-logo-vs-2x.png',
+'wp-admin/images/wp-logo-vs.png',
+'wp-admin/images/wp-logo.png',
+'wp-includes/images/wpmini-blue-2x.png',
+'wp-includes/images/wpmini-blue.png',
 );
 
 /**