Remove a bunch of reundant checks for transactions with no effect from Maniphest
Summary: Ref T2217. These checks are no longer necessary, ApplicationTransactions handle them for us.
Test Plan:
- Made a no-effect edit, verified no new transactions showed up.
- Made real edits, saw them happen and leave transactions.
- Made an edit which just reorders CCs, saw it detected as no-effect.
- As above, with projects.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2217
Differential Revision: https://secure.phabricator.com/D7117