Remove some unusual UI policy hints in Phriction
Summary:
Ref T13077. We currently have these weird policy hints in Phriction that we don't use in other applications. Just remove them for consistency to make the eventual swap to EditEngine a little easier.
Also nuke some unreacahble code.
Test Plan: Loaded edit page, saw more standard UI.
Reviewers: amckinley
Maniphest Tasks: T13077
Differential Revision: https://secure.phabricator.com/D19618