Remove dead code in libmedia

Change-Id: I7d8201590cda29c9fa99662a4fdba222091febfe
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
index 813ea85..01ab8c7 100644
--- a/include/media/AudioRecord.h
+++ b/include/media/AudioRecord.h
@@ -72,12 +72,6 @@
         };
     };
 
-    /* These are static methods to control the system-wide AudioFlinger
-     * only privileged processes can have access to them
-     */
-
-//    static status_t setMasterMute(bool mute);
-
     /* As a convenience, if a callback is supplied, a handler thread
      * is automatically created with the appropriate priority. This thread
      * invokes the callback when a new buffer becomes ready or an overrun condition occurs.
@@ -330,7 +324,6 @@
         friend class AudioRecord;
         virtual bool        threadLoop();
         virtual status_t    readyToRun();
-        virtual void        onFirstRef() {}
         AudioRecord& mReceiver;
     };
 
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index 639d6d2..325f780 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -472,8 +472,6 @@
     private:
         friend class AudioTrack;
         virtual bool        threadLoop();
-        virtual status_t    readyToRun();
-        virtual void        onFirstRef();
         AudioTrack& mReceiver;
         ~AudioTrackThread();
         Mutex               mMyLock;    // Thread::mLock is private
diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
index fdec5ee..aa58905 100644
--- a/include/media/Visualizer.h
+++ b/include/media/Visualizer.h
@@ -142,8 +142,6 @@
     private:
         friend class Visualizer;
         virtual bool        threadLoop();
-        virtual status_t    readyToRun();
-        virtual void        onFirstRef();
         Visualizer& mReceiver;
         Mutex       mLock;
         uint32_t mSleepTimeUs;
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index 74438ee..9fd78b3 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -1472,15 +1472,6 @@
     return true;
 }
 
-status_t AudioTrack::AudioTrackThread::readyToRun()
-{
-    return NO_ERROR;
-}
-
-void AudioTrack::AudioTrackThread::onFirstRef()
-{
-}
-
 void AudioTrack::AudioTrackThread::requestExit()
 {
     // must be in this order to avoid a race condition
diff --git a/media/libmedia/Visualizer.cpp b/media/libmedia/Visualizer.cpp
index de0bf7d..8196e10 100644
--- a/media/libmedia/Visualizer.cpp
+++ b/media/libmedia/Visualizer.cpp
@@ -353,13 +353,4 @@
     return false;
 }
 
-status_t Visualizer::CaptureThread::readyToRun()
-{
-    return NO_ERROR;
-}
-
-void Visualizer::CaptureThread::onFirstRef()
-{
-}
-
 }; // namespace android