Merge "remove unused vts-core-tradefed harness" into udc-dev am: d9fc700c am: 9187ccca

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22226458



Change-Id: Iaeb7a31defa67ab6fcbdb122f23fc534af1bf534
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>