solenberg b2a24ecf44 Relanding https://codereview.webrtc.org/1715883002/ in pieces.
- Clean up unused methods in voe::Channel following removal of VoEDtmf APIs.

BUG=webrtc:4690

Review URL: https://codereview.webrtc.org/1785643006

Cr-Commit-Position: refs/heads/master@{#11976}
2016-03-14 10:25:17 +00:00
..
2015-11-26 16:45:57 +00:00
2016-01-13 00:26:55 +00:00
2016-01-04 21:44:16 +00:00