ACM: Remove functions related to DTMF

webrtc/voice_engine/channel.cc

Index: webrtc/voice_engine/channel.cc
diff --git a/webrtc/voice_engine/channel.cc b/webrtc/voice_engine/channel.cc
index fb29dfabab35ee5dbcf3d481de0449d65f8060e2..ca2b7b0bdb2f0151aaadeff92c5decbaa18876ca 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -931,9 +931,7 @@ Channel::Init()
 
     // --- ACM initialization
 
-    if ((audio_coding_->InitializeReceiver() == -1)
-        // out-of-band Dtmf tones are played out by default
-        || (audio_coding_->SetDtmfPlayoutStatus(true) == -1)) {
+    if (audio_coding_->InitializeReceiver() == -1) {
         _engineStatisticsPtr->SetLastError(
             VE_AUDIO_CODING_MODULE_ERROR, kTraceError,
             "Channel::Init() unable to initialize the ACM - 1");