Revert "Add use_slave to urls that don't update the DB."
Revert "Add use_slave to urls that don't update the DB."

This reverts commit a6d2e46a1e341ec101dd305c3b4a48a027ed2391.

tjvr/s2forums,tjvr/s2forums,LLK/s2forums,LLK/s2forums,tjvr/s2forums,LLK/s2forums