Revert^2 "Removing some unused code from All-Apps" am: 52f4c16a94

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17923858

Change-Id: Ie929b8153ee8bc60442192319f3212641bb13ad2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>