Maybe fix issue #11634365: Leaking restarting services

It looks like we could add services to the restart list because
they end up left in the process's list of running services after
they have been removed from the main activity list, and we can
trip up on them there when the app is being force stopped.

Change-Id: I79805b67fcf5b593430dc5c856c97927e1a54a57