Unbind a Visual Studio 2010 Solution from Source Code Control

I was working with a solution that I got from someone else the other day.  When I loaded it up, Visual Studio 2010 informed me that it could not connect to a TFS server at some URL and will open the solution in offline mode (or something to that effect).  Of course, I have no access to this TFS server, so, I’m going to get this message every time I open this solution.  That’s going to get