am de612dc1: MediaPlayer: remove obsolete function setPlaybackRate from comments.
am de612dc1: MediaPlayer: remove obsolete function setPlaybackRate from comments.

* commit 'de612dc1d10d25e017ac911d0e7cca6709bdbb96':
  MediaPlayer: remove obsolete function setPlaybackRate from comments.

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