Merge "Remove unnecessary Android.mk" into main am: 73aa89da36 am: 6900f690c1

Original change: https://android-review.googlesource.com/c/device/sample/+/2826212

Change-Id: I426a45c0ed3e52c2e7cdc7086555f4c859f30256
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>