No Turi, you're not dreaming. They started to film that particular scene in which Michael, in his white suit and with a
lupara, goes to kill Fabrizio personally in hi pizza parlor. I believe that the lupara he used was actually Fabrizio's own gun. And I also believe that scene was intended to play at the end of GF1, along with the other murders. But for some reason the scene never made it anywhere.

On a related note, I find it interesting that the scene in which Michael finally gets revenge on Fabrizio in GF2, never made it into the original version. Someone who wasnt a fanatic like we are would never have the satisfaction of knowing Appolonia's murder was avenged.