The people’s princess is gone from “The Crown,” and it shows. The epic, generation-spanning royal-family Netflix drama “The Crown” is over, with its final six episodes (now streaming) covering Queen Elizabeth (Imelda Staunton) fretting about losing ground to Britain’s Prime Minister Tony Blair (Bertie Carvel) in the court of public opinion; the high school and college days of Prince William (Ed McVey) and his budding romance with Kate Middleton (Meg Bellamy); Prince Charles’ (Dominic West) wedding to Camilla Parker Bowles (Olivia Williams); and Prince Harry’s (Luther Ford) party-boy era – yes, including his Nazi costume scandal. After the first part...