Remove Controller->renderHandlesForPHIDs()

Summary: Ref T7689. Remove all remaining callsites for this method.

Test Plan:

• Viewed a custom policy; viewed handles in the policy rules.
• Viewed a Releeph product; viewed "Pushers".
• Viewed a project; viewed "Watchers"; viewed "Members"; viewed "Looks Like".
• Viewed repository edit; viewed "Credential"; viewed "Storage Service"; viewed "Projects".
• Viewed repository detail; viewed "Projects".
• Viewed commit; viewed (faked) "Reverts"; viewed (faked) "Reverted By".
  • These are kind of a pain to generate so I faked 'em.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7689

Differential Revision: https://secure.phabricator.com/D12208