CtsShim and CtsPrivShim moved out of system am: 834043e801 am: 513d9b9aed am: 349a56e63f

Original change: https://googleplex-android-review.googlesource.com/c/device/google/atv/+/11897681

Change-Id: I3aba3c4176b352183eaacca78636b2e6b8fec43a