By Mollie Quirk Prince Harry “used to like his privacy” but could now produce a “fly-on-the-wall documentary”, according to a former royal butler. The Duke of Sussex, along with his wife Meghan Markle, announced they would be stepping down from their senior roles within the Royal Family four years ago in 2020. The couple then moved back to Meghan’s homeland of America, with the couple moving into a lavish mansion in Montecito, California. The Sussexes have brought up their son, Prince Archie, in the States, with them also welcoming their daughter, Princess Lilibet, in America. As well as bring…