Merge "Remove users via adb command instead of polling to check if removed."...

Merge "Remove users via adb command instead of polling to check if removed." into udc-dev am: 4efefb6a am: 7857ed02 am: e9a44e07

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22849717



Change-Id: I0155c1db67f92c6c206c5af93af632d86d1336a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>