message: Suppress noisy logging from opus encoder.
  Cr-Commit-Position: refs/heads/master@{#29706}
diff: @@ -851,7 +851,7 @@ void AudioEncoderOpusImpl::SetTargetBitrate(int bits_per_second) {
  RTC_CHECK_EQ(
  0, WebRtcOpus_SetBitRate(
  inst_, GetMultipliedBitrate(bitrate, bitrate_multipliers_)));
  - RTC_LOG(LS_INFO) << "Set Opus bitrate to " << bitrate << " bps.";
  + RTC_LOG(LS_VERBOSE) << "Set Opus bitrate to " << bitrate << " bps.";
  bitrate_changed_ = true;
  }
  