Merge "Revert "Remove app cloning feature flags"" into udc-dev am: 0d7e838e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23353191



Change-Id: I63f8c1ed08e730be70a8d8d1156ada564cacb1cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>