This will enable loss based bwe v2 by default. The default params were used in Chrome experiment and got positive result. Remove some tests in goog_cc, which are for loss based bwe v1. Bug: webrtc:12707 Change-Id: Ice126a128f6e8cea8b861f879d09e390ee69e521 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/285740 Commit-Queue: Diep Bui <diepbp@google.com> Reviewed-by: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38851}