Merge "Remove all apps tabs elevation" into sc-dev am: 2c7c629704 am: 2ed3087743 am: f3738aba22

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14682327

Change-Id: Ie6f0845c6bcccbe08a302e91fb9599266d26c700