Reason for revert: ODR violation Original issue's description: > Adding BitrateController to audio network adaptor. > > BUG=webrtc:6303 > > Committed: https://crrev.com/26b039a137be0a8703766f45b546b29323de714f > Cr-Commit-Position: refs/heads/master@{#14293} TBR=michaelt@webrtc.org,henrik.lundin@webrtc.org,krasin@chromium.org # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=webrtc:6303 Review-Url: https://codereview.webrtc.org/2352223002 Cr-Commit-Position: refs/heads/master@{#14327}