Rewrite rules don't need to be flushed on every page save/delete as they're no...

Rewrite rules don't need to be flushed on every page save/delete as they're no longer verbose. Fixes #19636.


git-svn-id: https://core.svn.wordpress.org/trunk@19727 1a063a9b-81f0-0310-95a4-ce76da25c4cd