Remove unused admin-categories and admin-custom-fields JavaScript files. props ocean90. fixes #23486.



git-svn-id: http://core.svn.wordpress.org/trunk@23446 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-alpha-23447.

git-svn-id: http://core.svn.wordpress.org/trunk@23447 1a063a9b-81f0-0310-95a4-ce76da25c4cd