Merge "Remove unused code from ExpandableNotificationRow" into tm-qpr-dev am: 9f00d05c0c am: 78c4586ce7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19678982

Change-Id: Ib403076f70bff248b0ddb2ea9e58715350873394
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>