Merge "Remove scenario/power.xml to put it in vendor/." am: 9cb5766595 am: d4a56f409a

Original change: https://android-review.googlesource.com/c/platform/tools/tradefederation/contrib/+/1429092

Change-Id: Ifb6f161eaf6d59b8994e8a45727df5c4e39cfcf6