320c57b7c6
removes the special-casing of not sending a RED header when there is no redundant payload. This avoids switching back and forth between the primary and the red payload format (primarily at the start of the connection). BUG=webrtc:11640 Change-Id: I8e0044bef1ed7c4168d9527645522392db2ed068 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/220932 Reviewed-by: Jesus de Vicente Pena <devicentepena@webrtc.org> Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org> Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34703}