Merge "Drop .stubs from android.test.[base|runner|mock].stubs" into rvc-dev-plus-aosp am: 2e220ff9a1

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/12034583

Change-Id: Ib479635d99c5efe892a4f2a5c0deb2798dbf4bd0
tree: 6f2322671c932f15502dbb013852eca3584e8230
  1. tests/