Delete expired CE snapshots of app data when user unlocks.

This adds a call to the new destroyCeSnapshotsNotSpecified method
of installd, to delete all expired CE snapshots when a user unlocks.

See ag/10731882 for the installd side of this change.

Bug: 147806409
Test: Manual - install app with rollback enabled, expire the rollback,
check that snapshot is deleted.
Change-Id: Ife88309d29963d30c27bfe47f20f6f42a9f59086