Bug 1367983 - revert the change of bug1367980. r=jwwang

In bug1371202, it has already implemented what I want to do, so remove the
change in bug1367980.

MozReview-Commit-ID: LoH51bBDTqr

--HG--
extra : rebase_source : 9fd77acae81f94e45f0f840775c81509e85c4ad0

dom/media/MediaDecoderStateMachine.cpp

@@ -1957,15 +1957,12 @@ public:
 
   void Enter()
   {
-    // TODO : use more approriate way to decide whether need to release
-    // resource in bug1367983.
-#ifndef MOZ_WIDGET_ANDROID
     if (!mMaster->mLooping) {
       // We've decoded all samples.
       // We don't need decoders anymore if not looping.
       Reader()->ReleaseResources();
     }
-#endif
+
     bool hasNextFrame = (!mMaster->HasAudio() || !mMaster->mAudioCompleted)
                         && (!mMaster->HasVideo() || !mMaster->mVideoCompleted);