Remove animator on app list.

The animator causes a lot of jank. Removing it makes the UI feel faster
in general.

Fixes: 74127318
Test: visual
Change-Id: I79cbe8220fb05af84a394207dac2c8c9a93288be

src/com/android/settings/applications/manageapplications/ManageApplications.java

@@ -373,6 +373,7 @@ public class ManageApplications extends InstrumentedFragment
                                 UserHandle.of(userId)));
             }
             mRecyclerView = mListContainer.findViewById(R.id.apps_list);
+            mRecyclerView.setItemAnimator(null);
             mRecyclerView.setLayoutManager(new LinearLayoutManager(
                     getContext(), RecyclerView.VERTICAL, false /* reverseLayout */));
             mRecyclerView.setAdapter(mApplications);