stop niql service on non-active nodes

Change-Id: I6eae22e8895f2a10c574f574dde1ea96f029d3aa
Reviewed-on: http://review.couchbase.org/43153
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>