Fix bug where all apps items fade in.

Removes all Add/Change/Move/Remove animations by
clearing the AllAppsRecyclerView ItemAnimator.

Bug: 64675794
Change-Id: I41f975ab6be4bf48c483828ea6f109382a8a9320
(cherry picked from commit 7dfabaa02bdcf7d9307e11fa490c097bdc990025)
1 file changed