Summary:
Ref T1191. Notes:
- Drops the project affiliation table. This is a very old membership table which was migrated to edges.
- Drops the subproject table. This is a very old table for a removed feature.
Test Plan:
- Grepped for dropped tables.
- Saw ~100 fewer setup issues.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10581
