MILAN (AP) — Gucci announced on Thursday that its creative director of under two years, Sabato De Sarno, has left the position just two and a half weeks before the next runway show, and that the new collection would be created by the design team. The abrupt announcement of De Sarno’s departure comes as Gucci prepares to open Milan Fashion Week with a combined womenswear and menswear collection on Feb. 25. His replacement will be announced “in due time,’’ the statement said.