Removes the dependency on TransportFeedbackAdapter thereby removing some of the complexity that came with it, in particular, we don't fill in missing packets. This makes the code easier to debug and avoids some confusing logging that's not relevant for the parser. Bug: webrtc:9883 Change-Id: I6df8425e8ab410514727c51a5e8d4981d6561f03 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/133347 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Björn Terelius <terelius@webrtc.org> Commit-Queue: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27739}