Henrik Boström 4e231eedbd Delete deprecated 'track' and 'stream' metrics from WebRTC.
Track stats are roughly equal in size as the RTP stream stats which
are the largest objects making up the majority of the RTCStatsReport
size and scales with meeting size. Deleting track/stream reduces the
size in approximately half which should reduce performance overhead
and unblock code simplifications.

Blocked on:
- https://chromium-review.googlesource.com/c/chromium/src/+/4517530

# Relevant bots already passed
NOTRY=True

Bug: webrtc:14175, webrtc:14419
Change-Id: Ib7bdb84c10459b42b829228d11876498e5227312
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/289043
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40129}
2023-05-24 12:26:56 +00:00
..