Revert "Base: Floating window <> MultiWindow"

This reverts commit 4d456924f7878b5314b792f0f6f405b0f63f6c97.
Revert "Base: App Circle sidebar (add support floating window)"

This reverts commit 30cd9a58fb6127d3b13bb17e6aa90bdabc4bee06.
Revert "Update GlobalActions.java"

This reverts commit f637de991185c360d7920ae580c6710ab414fb1e.

Conflicts:
	policy/src/com/android/internal/policy/impl/GlobalActions.java