Further cleanup of revisions code. Probably not the last.

see #23901. props adamsilverstein, azaozz, ocean90.

git-svn-id: http://core.svn.wordpress.org/trunk@23898 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Standardize the post format theme API functions with the_post_format_THING() and get_the_post_format_THING().

fixes #23927

git-svn-id: http://core.svn.wordpress.org/trunk@23899 1a063a9b-81f0-0310-95a4-ce76da25c4cd