Merge "Remove sysui flag for VPN features Bug: 272805037, 279881422 Test: manual" into udc-dev am: 0189f818 am: 5550df7c am: c8dee34d am: 54abee20

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23262936



Change-Id: I394778e4064705ccdb0cd1aeceb26f00679c9540
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>