Remove debug cruft. props dimadin. see #25948.

Built from https://develop.svn.wordpress.org/trunk@26215


git-svn-id: http://core.svn.wordpress.org/trunk@26123 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Sort themes by name on the new themes.php page. see #25948.

Built from https://develop.svn.wordpress.org/trunk@26216


git-svn-id: http://core.svn.wordpress.org/trunk@26124 1a063a9b-81f0-0310-95a4-ce76da25c4cd