Fix Conpherence transaction ordering

Summary: Ref T7815. Pretty sure this is right? Seems OK locally. Also: simpler!

Test Plan:
  - Conpherence is right-side-up.
  - Transactions on other objects are also still right-side-up.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7815

Differential Revision: https://secure.phabricator.com/D12398

src/applications/conpherence/query/ConpherenceTransactionQuery.php

@@ -7,9 +7,4 @@ final class ConpherenceTransactionQuery
     return new ConpherenceTransaction();
   }
 
-  protected function getDefaultOrderVector() {
-    // TODO: Can we get rid of this?
-    return array('-id');
-  }
-
 }