DO NOT MERGE Revert "AudioFlinger: mix track only when really ready (2)"

This reverts commit 71c4496a9757438afd30b4404824f296f6158a49.

Change-Id: Iff10c49ea728bb10023ddeb50a3b708db770fff2
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 9bd2c7f..6cafa7e 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -836,9 +836,7 @@
         virtual     uint32_t    idleSleepTimeUs();
         virtual     uint32_t    suspendSleepTimeUs();
 
-                    AudioMixer* mAudioMixer;
-                    uint32_t    mPrevMixerStatus; // previous status (mixer_state) returned by
-                                                  // prepareTracks_l()
+        AudioMixer*                     mAudioMixer;
     };
 
     class DirectOutputThread : public PlaybackThread {