Field trial is not used in any rollouts and should be removed. R=mhoro@webrtc.org Bug: webrtc:13264 Change-Id: Ib896dcdec81db7c3f4e68a8dda266d96dfdc6aed Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/234865 Reviewed-by: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Michael Horowitz <mhoro@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35195}