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: I0f06ac2988f265f1ba31aed40937f3e19ec68784
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>