THX needs this file, for now. see #25948.

Built from https://develop.svn.wordpress.org/trunk@26142


git-svn-id: http://core.svn.wordpress.org/trunk@26053 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Temporarily remove CSS preprocessing until we can get our Ruby dependency sorted out.

see #25858, #22862.

Built from https://develop.svn.wordpress.org/trunk@26143


git-svn-id: http://core.svn.wordpress.org/trunk@26054 1a063a9b-81f0-0310-95a4-ce76da25c4cd