Remove class root duplicates from well known classes. am: 7b97aebac8 am: 28280e94e9 am: 5cab7bd60d

Original change: https://android-review.googlesource.com/c/platform/art/+/2323316

Change-Id: I495e71742bfc325324f4a5c3f494af0dbd080828
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>