Turn "bypassCache" into a no-op in "diffusion.querycommits"
Summary: Ref T13552. The internal caller for this now uses "internal.commit.search", which is always authority-reading. No legitimate external caller should rely on the behavior of "bypassCache"; no-op it to simplify behavior.
Test Plan: Called "diffusion.querycommits", saw the same data as before.
Maniphest Tasks: T13552
Differential Revision: https://secure.phabricator.com/D21447