Backport of "rtpbasepayload: Remove dead twcc code" into 1.20
Backport of !1902 (merged) "rtpbasepayload: Remove dead twcc code".
Commits:
- 146111d7 rtpbasepayload: Remove dead twcc code
Backport of !1902 (merged) "rtpbasepayload: Remove dead twcc code".
Commits: