Backed out changeset 50b1d3506786 (bug 1279332) for various Android robocop failures. r=backout

mobile/android/base/java/org/mozilla/gecko/widget/GeckoActionProvider.java

@@ -207,12 +207,7 @@ public class GeckoActionProvider {
 
         // Inform the target listener to refresh it's UI, if needed.
         if (mOnTargetListener != null) {
-            ThreadUtils.postToUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    mOnTargetListener.onTargetSelected();
-                }
-            });
+            mOnTargetListener.onTargetSelected();
         }
     }