Hiding registration on Membership 2 Pro

We use the membership area of this site to protect a working area for a committee. Thus, we provide logins for those who are to participate. We do not wish to allow any registrations -- we add members manually. However if a person types a URL for the site that is protected (yes, some people try to do that), a message appears saying the page is restricted (good). But it also offers a "Register" link. How can we hide that link and disable any possibility of registration beyond the dashboard?