martinibuster - 6:12 pm on Mar 23, 2010 (gmt 0)
Just my opinion, but I don't think that having those links can be harmful. Only that, at worst, they can begin to be deprecated and cause the site to rank where it should rank for as explained above. That said, they probably already were deprecated from the beginning.
However, if you're experiencing a 90% drop in ranking then it could be a manual adjustment, which is outside the scope of discussion here in the link dev forum.