Remove temporary hooks from the 3.8 branch.

fixes #25656 for 3.8.

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Version bump.

Built from https://develop.svn.wordpress.org/branches/3.8@26856


git-svn-id: http://core.svn.wordpress.org/branches/3.8@26743 1a063a9b-81f0-0310-95a4-ce76da25c4cd