Merge "Removes left/right buttons from bottom area." into tm-qpr-dev am: 2d6505a6 am: 7153dc9e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19053512



Change-Id: I17197f8c93037f0e6c821d9299fb5ce9c48d0898
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>