Revert [21942] and have wp_publish_post() deal with the database directly....

Revert [21942] and have wp_publish_post() deal with the database directly. clean_post_cache() is now also called directly due to [21943].

fixes #22944 for trunk.
Unit tests: [1174/tests].

see #11399. see #21963.



git-svn-id: https://core.svn.wordpress.org/trunk@23206 1a063a9b-81f0-0310-95a4-ce76da25c4cd