Remove some more post format functions.

props wonderboymusic. fixes #24610.

git-svn-id: http://core.svn.wordpress.org/trunk@24555 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Debounce the Revisions UI URL updates as you scrub, for a massive speedup and a reduction in URL history detritus.

see #24425

git-svn-id: http://core.svn.wordpress.org/trunk@24556 1a063a9b-81f0-0310-95a4-ce76da25c4cd