This change removes compatibility APIs in RTCPSender now that downstream consumers updated. Bug: webrtc:11581, webrtc:6458 Change-Id: I82d70f1ab6b522b3884480b0b16cbdff9a1490c2 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/222323 Commit-Queue: Markus Handell <handellm@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34356}