ACM: Remove functions related to DTMF

webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc

Index: webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
diff --git a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
index 3013925c02efe305954d43700004feb3bca39cd4..5b4faf9e309c49d2dd5bc9d8e21b4898e8d9a2f0 100644
--- a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
+++ b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
@@ -821,14 +821,6 @@ int AudioCodingModuleImpl::SetInitialPlayoutDelay(int delay_ms) {
   return receiver_.SetInitialDelay(delay_ms);
 }
 
-int AudioCodingModuleImpl::SetDtmfPlayoutStatus(bool enable) {
-  return 0;
-}
-
-bool AudioCodingModuleImpl::DtmfPlayoutStatus() const {
-  return true;
-}
-
 int AudioCodingModuleImpl::EnableNack(size_t max_nack_list_size) {
   return receiver_.EnableNack(max_nack_list_size);
 }
@@ -858,7 +850,6 @@ AudioCodingImpl::AudioCodingImpl(const Config& config) {
   acm_old_.reset(new acm2::AudioCodingModuleImpl(config_old));
   acm_old_->RegisterTransportCallback(config.transport);
   acm_old_->RegisterVADCallback(config.vad_callback);
-  acm_old_->SetDtmfPlayoutStatus(config.play_dtmf);
   if (config.initial_playout_delay_ms > 0) {
     acm_old_->SetInitialPlayoutDelay(config.initial_playout_delay_ms);
   }