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

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



Change-Id: Id744a6df63997017c19d5fa3fd5571b81c9254d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>