A report of an assault outside a Bronx restaurant early Saturday led to the discovery of a man bleeding out from a fatal gunshot wound to the gut, police said. Cops were called to the La Clave Restaurant on Evergreen Ave. near Elder Ave. at about 3:30 a.m. where they found the victim, who is believed to be in his 20s, sprawled on the ground. EMS rushed him to Jacobi Hospital, but he couldn’t be saved. Cops were trying to identify the victim on Saturday. It was not immediately disclosed what sparked the shooting. No arrests have been made.