Saudi Arabia’s ageing King Salman has left the hospital one week after being admitted for tests, including a colonoscopy, state media reported. Video broadcast by the official Saudi Press Agency (SPA) late Sunday showed the 86-year-old monarch walking out of King Faisal Specialist Hospital in the coastal city of Jeddah, using a cane and surrounded by officials, including Crown Prince Mohammed bin Salman before being driven away. He left “after conducting medical examinations and successfully completing the treatment plan and recovery period,” the SPA said on Twitter. Custodian of Two Holy Mosq…