Merge "Remove shadows from app launch animation" into sc-dev am: 4e760601d5 am: 50ac504581

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14637247

Change-Id: I5b3a86ee077d2c4064bebc48d0b4d58436749c24