Revert "Ensure video decoding completely stops when pipeline is being flushed."

BZ: 35857

This reverts commit bdbe4bf7af2d7498f5209f98e0c0ec13553d6cba.
This reverts patch http://android.intel.com:8080/#/c/49253/

Change-Id: Ife1bc668c5805c93a07cd82d3abf60072289861d
Signed-off-by: Marie-Celine Dubut <marie.celinex.dubut@intel.com>
Reviewed-on: http://android.intel.com:8080/50509
diff --git a/videodecoder/VideoDecoderBase.cpp b/videodecoder/VideoDecoderBase.cpp
index 36d7d04..fe43045 100644
--- a/videodecoder/VideoDecoderBase.cpp
+++ b/videodecoder/VideoDecoderBase.cpp
@@ -670,7 +670,6 @@
     if (dropFrame) {
         // we are asked to drop this decoded picture
         VTRACE("Frame dropped in endDecodingFrame");
-        vaStatus = vaSyncSurface(mVADisplay, mAcquiredBuffer->renderBuffer.surface);
         releaseSurfaceBuffer();
         goto exit;
     }