danilchap b6f1fb5337 Delete RTPSender::BuildRtpHeader function
and all dependencies

BUG=webrtc:5565

Review-Url: https://codereview.webrtc.org/2399463009
Cr-Commit-Position: refs/heads/master@{#14682}
2016-10-19 13:11:44 +00:00
..
2016-10-19 01:22:25 +00:00