The new field trial can be used to ensure probes are limited by the current BWE and does not automatically send a probe at the new max rate.
Also removes unused
FieldTrialFlag allocation_allow_further_probing;
FieldTrialParameter<DataRate> allocation_probe_max;
Bug: webrtc:14928
Change-Id: I0d5c350c0231ca0600033ad8211dca0574104201
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339840
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Diep Bui <diepbp@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41744}