Lately I've been dealing with models (2-D, and 3-D) that are linked up to another 3-D model. It will ask for the drawing to be re-linked, but other than that I can't find any reference made to that model in the model, nor it's 2-D drawing. Is there a way to remove this model that is associated with these other models? This particular model is linked to so many other models that have no reason being connected.
Do a pack and go and remove/uncheck all unwanted files link. Now open the saved file (after pack and go) and check.