Team server version control error

Question

I am working on a C# asp.net 2010 website that I obtaine from a contract shop my company is working with. I am guessing this company uses team server foundation and I use subversion for version contract. Thus can you tell me how to remove the team server references so I do not get the following error any longer:
go Offline
The team foundation server http:../.. is currently unavailable.
The solution will be opened offline.