Cleanup some of the TODOs for H.265. They are either invalid or their handling should be merged with other codec types. Bug: chromium:41480904 Change-Id: I76263354b1b87035e240d77283b21a9a26dcb45b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366044 Reviewed-by: Henrik Boström <hbos@webrtc.org> Commit-Queue: Jianlin Qiu <jianlin.qiu@intel.com> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43359}