Clean up stale fixed rotation state

This restores original logic that was not called in new transition
architecture. The fail safe condition is still needed to make
sure the windows won't wait for an outdated orientation switch.

Bug: 289196433
Test: Rapidly switch activities in different orientations. The
      system window should not disappear permanently.
Change-Id: Id1148dbfea349dad6c6057b24509bbc4e66ab1dd