Revert "Change TAPL to swipe to stash taskbar (instead of deprec..."

Revert submission 25532044-tapl-transient-taskbar-default

Reason for revert: <test revert (b/314873201)>

Reverted changes: /q/submissionid:25532044-tapl-transient-taskbar-default

Change-Id: I51e78699f588a8fe8506c96398de921448e0ab6a
12 files changed