Merge "Revert "Add a way to stash/unstash transient taskbar."" into tm-qpr-dev am: de5d5720

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20348768



Change-Id: I69473abb68aa6763568d2e318378d442ac5142ed
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>