Remove ACM1 and NetEq3 related targets from modules.gyp

Make necessary changes to compile.

BUG=2996
R=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/18379004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6008 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_coding/main/interface/audio_coding_module.h

@@ -74,10 +74,6 @@ class ACMVQMonCallback {
       const uint16_t delayMS) = 0;  // average delay in ms
 };
 
-// Version string for testing, to distinguish instances of ACM1 from ACM2.
-extern const char kLegacyAcmVersion[];
-extern const char kExperimentalAcmVersion[];
-
 class AudioCodingModule: public Module {
  protected:
   AudioCodingModule() {}
@@ -190,11 +186,6 @@ class AudioCodingModule: public Module {
   //
   static bool IsCodecValid(const CodecInst& codec);
 
-  // Returns the version of ACM. This facilitates distinguishing instances of
-  // ACM1 from ACM2 while testing. This API will be removed when ACM1 is
-  // completely removed.
-  virtual const char* Version() const = 0;
-
   ///////////////////////////////////////////////////////////////////////////
   //   Sender
   //