Fix ns_server remote in toy-junyi.xml

Change-Id: I62da1aad49d136c1f5512c11169c89aef50e9b7e
Reviewed-on: http://review.couchbase.org/27710
Reviewed-by: Junyi Xie <junyi.couchbase@gmail.com>
Tested-by: Junyi Xie <junyi.couchbase@gmail.com>