message: Remove check for WebRTC-SendSideBwe-WithOverhead in bitrate controller.
  This was default enabled in:
  Cr-Commit-Position: refs/heads/master@{#32570}
diff: @@ -53,11 +53,6 @@ void BitrateController::MakeDecision(AudioEncoderRuntimeConfig* config) {
  // Decision on |bitrate_bps| should not have been made.
  RTC_DCHECK(!config->bitrate_bps);
  if (target_audio_bitrate_bps_ && overhead_bytes_per_packet_) {
  - // Current implementation of BitrateController can only work when
  - // |metrics.target_audio_bitrate_bps| includes overhead is enabled. This is
  - // currently governed by the following field trial.
  - RTC_DCHECK(
  - webrtc::field_trial::IsEnabled("WebRTC-SendSideBwe-WithOverhead"));
  if (config->frame_length_ms)
  frame_length_ms_ = *config->frame_length_ms;
  int offset = config->last_fl_change_increase
  