Phriction - kill off rest of project integration

Summary: we don't need this stuff no mo'.  Fixes T6506.

Test Plan: cruised the wiki, noting workingess

Reviewers: chad, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T6506

Differential Revision: https://secure.phabricator.com/D10832