nisse d19bcb7116 Delete class MockCongestionController.
It became unused in cl https://codereview.webrtc.org/2516983004.

BUG=None

Review-Url: https://codereview.webrtc.org/2762023004
Cr-Commit-Position: refs/heads/master@{#17325}
2017-03-21 16:41:07 +00:00
..
2016-11-16 19:11:38 +00:00