Core: Remove header and manifest

This file is deprecated and should not be included, by default, in
builds anymore.

Author: jzaefferer

ui/core.js

@@ -1,18 +1,3 @@
-/*!
- * jQuery UI Core @VERSION
- * http://jqueryui.com
- *
- * Copyright jQuery Foundation and other contributors
- * Released under the MIT license.
- * http://jquery.org/license
- *
- */
-
-//>>label: Core
-//>>group: Core
-//>>description: The core of jQuery UI, required for all interactions and widgets.
-//>>docs: http://api.jqueryui.com/category/ui-core/
-
 // This file is deprecated in 1.12.0 to be removed in 1.13
 ( function() {
 define( [