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: 196053af am: 64c1adb7

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



Change-Id: I8fa52d301dc891291f3e2680729b2fa97407e421
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>