Remove code related to REMB suppressor experiment.

Stats indicate this isn't helping. Ditching the whole thing.

BUG=4082
R=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/47569004

Cr-Commit-Position: refs/heads/master@{#8734}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8734 4adac7df-926f-26a2-2b94-8c16560cd09d
10 files changed