fix newly published posts appearing twice

see https://github.com/mastodon/mastodon-android/issues/283

mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java

@@ -142,7 +142,6 @@ public class HomeTimelineFragment extends StatusListFragment{
 		}
 	}
 
-	@Subscribe
 	public void onStatusCreated(StatusCreatedEvent ev){
 		prependItems(Collections.singletonList(ev.status), true);
 	}