It’s been anything but a quiet spring in Queens. That was reinforced on Tuesday. Sophomore guard Federico Mussini has decided to return home to Italy to play professionally for club team Reggio Emilia, the school announced. But it may not take too long to replace the Italian sharpshooter, who averaged 7.9 points and shot 42 percent from 3-point range last year. High school senior guard Bryan Trimble, a three-star recruit who was recently let out of his National Letter of Intent by Florida State, began an official visit to the Queens schools on Monday night. A source said the Johnnies are “exploring potential options” in the 6-foot-3 Trimble, who was released from his NLI on Thursday. Trimble comes from the same Kansas City-based AAU program, Mokan Elite, as Red Storm forward Marvin Clark Jr., the Michigan State transfer who will be eligible next season. St. John’s assistant Matt Abdelmassih has known Trimble for years, dating back to his days as an assistant at Iowa State. Since the season ended, St. John’s has seen Malik Ellison, Darien Williams, Richard Freudenberg and now Mussini leave, while adding four-star Bronx wing Sidney Wilson and transfers Mikey Dixon (Quinnipiac) and Sedee Keita (South Carolina). Mussini and Freudenberg went back overseas to play professionally, Ellison transferred to Pittsburgh and Williams remains uncommitted. Transfers Clark (Michigan State) and Justin Simon (Arizona) also will be eligible after sitting out last season.