This is part of the project to delete the class entirely. The CL also adds an "use_rtx" parameter to the function for listing video codecs, rather than filtering those away afterwards. Bug: webrtc:13931 Change-Id: I96b9b18c694a1c0986ccf22face76ef4c704d372 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262666 Reviewed-by: Henrik Boström <hbos@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36963}