When I have a class I believe I no longer use, I usually attempt to delete it and see if there is an error. This strikes me as one of those things that just must be wrong...but I don't see another way. Can someone tell me what I must obviously be missing? :(
sure. in eclipse, do a search (Ctrl- H) for the class name. as long as you down loaded, visualforce pages, apex classes, triggers, and sControles that should cover the majority (if not all) cases.
Developer Console shows referenced by in addition to dependencies.
Eg, selecting the
BlobController class here reveals that
BlobPage uses it as a controller.