By Tom Bryant Steve Wright underwent a heart bypass operation months before his death, a friend has revealed. The veteran radio presenter passed away at the age of 69 and was found dead at his London flat on Monday. Police said the Radio 2 star’s death was “not being treated as suspicious”. According to Mark Wells, the former controller of ITV Entertainment, the much-loved broadcaster had undergone secret surgery before his passing and was ‘more ill than he let on.’ Speaking about his late friend on Colin Edmonds’ podcast Behind The Scenes, Mr Wells said: “Steve had a heart operation about 15m…