WASHINGTON—The King has called it a career. Henrik Lundqvist, one of the greatest goaltenders of his generation, announced his retirement Friday less than nine months after heart surgery. “It’s time,” the 39-year-old Lundqvist wrote in a social media post. “For the last 30 years, I have devoted my life to the game of hockey and now it’s time to walk away from the game I love and begin a new chapter.” Lundqvist also told the Göteborgs-Posten newspaper he needs a new heart procedure. “We will see how extensive it will be,” he said. “Treatments are getting better, so we will see if they’ll open up the chest or not. But that will be problem for the future.” The Swede starred for years for the New York Rangers, where he piled up 459 wins along with a a 2.43 goals-against average and 64 shutouts in 15 seasons. He is sixth in NHL …