Merge "Remove unused folder development/testrunner" into main am: 3d6df7c624

Original change: https://android-review.googlesource.com/c/platform/development/+/2825850

Change-Id: I4c2ba5a680302984a1af713fa2199cb10a781864
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>