Remove various IDs:

- AudioFrame
- AudioCodingModule

BUG=webrtc:4690
TBR=kwiberg@webrtc.org

Review-Url: https://codereview.webrtc.org/3019543002
Cr-Commit-Position: refs/heads/master@{#20005}
diff --git a/modules/audio_coding/test/TestRedFec.cc b/modules/audio_coding/test/TestRedFec.cc
index 3e88290..58561c6 100644
--- a/modules/audio_coding/test/TestRedFec.cc
+++ b/modules/audio_coding/test/TestRedFec.cc
@@ -48,8 +48,8 @@
 }
 
 TestRedFec::TestRedFec()
-    : _acmA(AudioCodingModule::Create(0)),
-      _acmB(AudioCodingModule::Create(1)),
+    : _acmA(AudioCodingModule::Create()),
+      _acmB(AudioCodingModule::Create()),
       _channelA2B(NULL),
       _testCntr(0) {
 }