Merge "Revert "Update app icon shadows"" into tm-dev am: 202ac414 am: b2919ce5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18675016



Change-Id: I9f92216f1db5331b450b750855213cc9fd642335
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>