StageCoordinator shouldn't support CompatUI

Since StageCoordinator only coordinates MainStage and SideStage, it
shouldn't have CompatUI layouts. This is already handled by MainStage
and SideStage.

Fix: 298645571
Test: Manual
Change-Id: I6cb395d7b440e2743f9b57b88a9d220af1e58070
3 files changed