Fix the unused parameter warning in...
Fix the unused parameter warning in...

...ns_online_config_upgrader module.

Change-Id: I82e080479711ed48c8a5f9645f44231159839d39
Reviewed-on: http://review.couchbase.org/85089
Well-Formed: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Tested-by: Ajit Yagaty <670a5cadfa9668cb910cc315f6527868cd5ab42a@couchbase.com>
Reviewed-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server