Remove various IDs

modules/audio_coding/acm2/audio_coding_module.cc

Index: modules/audio_coding/acm2/audio_coding_module.cc
diff --git a/modules/audio_coding/acm2/audio_coding_module.cc b/modules/audio_coding/acm2/audio_coding_module.cc
index 5997d1269e5446da3574314c632c722237b85224..bfc37e8f39f880bde5541569c9dff27ff0fa5062 100644
--- a/modules/audio_coding/acm2/audio_coding_module.cc
+++ b/modules/audio_coding/acm2/audio_coding_module.cc
@@ -269,7 +269,6 @@ class AudioCodingModuleImpl final : public AudioCodingModule {
 
   rtc::CriticalSection acm_crit_sect_;
   rtc::Buffer encode_buffer_ RTC_GUARDED_BY(acm_crit_sect_);
-  int id_;  // TODO(henrik.lundin) Make const.
   uint32_t expected_codec_ts_ RTC_GUARDED_BY(acm_crit_sect_);
   uint32_t expected_in_ts_ RTC_GUARDED_BY(acm_crit_sect_);
   acm2::ACMResampler resampler_ RTC_GUARDED_BY(acm_crit_sect_);
@@ -456,8 +455,7 @@ void AudioCodingModuleImpl::ChangeLogger::MaybeLog(int value) {
 
 AudioCodingModuleImpl::AudioCodingModuleImpl(
     const AudioCodingModule::Config& config)
-    : id_(config.id),
-      expected_codec_ts_(0xD87F3F9F),
+    : expected_codec_ts_(0xD87F3F9F),
       expected_in_ts_(0xD87F3F9F),
       receiver_(config),
       bitrate_logger_("WebRTC.Audio.TargetBitrateInKbps"),
@@ -1120,7 +1118,6 @@ int AudioCodingModuleImpl::PlayoutData10Ms(int desired_freq_hz,
     LOG(LS_ERROR) << "PlayoutData failed, RecOut Failed";
     return -1;
   }
-  audio_frame->id_ = id_;
   return 0;
 }