Remove dead code in AudioTrack JNI
Remove dead code in AudioTrack JNI

Change-Id: I17103485cdefdf2d1dbda8d1993e64c80d4e952e

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base