message: APM: remove WebRTC.Audio.ApmRuntimeSettingCannotEnqueue
  The histogram definition is removed in crrev.com/c/4030265.
  Cr-Commit-Position: refs/heads/main@{#38683}
diff: @@ -868,7 +868,6 @@ bool AudioProcessingImpl::RuntimeSettingEnqueuer::Enqueue(
  const bool successful_insert = runtime_settings_.Insert(&setting);
  if (!successful_insert) {
  - RTC_HISTOGRAM_BOOLEAN("WebRTC.Audio.ApmRuntimeSettingCannotEnqueue", 1);
  RTC_LOG(LS_ERROR) << "Cannot enqueue a new runtime setting.";
  }
  return successful_insert;
  