Merge "Remove all multidisplay functionality in the Touch Latency sample app,...

Merge "Remove all multidisplay functionality in the Touch Latency sample app, for now. Also update to newer gradle versions, to allow editing in Studio." into udc-dev am: bd32923d am: 0e527e28 am: 22cc8af0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22819741



Change-Id: I367c04177c739df07753a681b1acb9ba8d984c20
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>