diff --git a/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css b/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css
deleted file mode 100644
index 2097708f0b..0000000000
--- a/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css
+++ /dev/null
@@ -1,2 +0,0 @@
-/* not used, included for back-compat, see wp-includes/css/editor-buttons.css */
-@import url("../../../../../../css/editor-buttons.css?ver=20111114");