DO NOT MERGE Remove orientation restriction to only fullscreen activities.

This changelist removes checks that enforce that only fullscreen,
opaque activities may request orientation changes. An application
may itself be compatible with the change and update their SDK level.
However, it is possible they use a library that has not itself been
updated and still leverages this feature for non-fullscreen
activities.

Fixes: 68684796
Test: bit FrameworksServicesTests:com.android.server.wm.AppWindowTokenTests

Change-Id: Ib5a60f0b660ad145d07e953e541a0a1b801aeef2
(cherry picked from commit a89b183e)