In the Google Webmaster Tools account of my latest project I can see 57 Internal Links (links to internal pages), that are not actually from our site. Since we just launched it, there are no real internal links, only these "fake" ones.
My only guess is that at some point in the past, someone used that domain name, and now these links live somewhere in the internet and currently lead to 404 page in our site.
So my question is, how to tell Google that these links are not actually part of our site and they have never been ?