removed ImageView onDraw super call

src/com/owncloud/android/ui/preview/ImageViewCustom.java

@@ -58,7 +58,6 @@ public class ImageViewCustom extends ImageView {
             //
             setLayerType(View.LAYER_TYPE_SOFTWARE, null);
         }
-        super.onDraw(canvas);
 
         if(mGifMovie != null) {
             long nowTick = android.os.SystemClock.uptimeMillis();