Alvarez previously held the IBF, WBA and WBC belts at middleweightPromoter Oscar de la Hoya has called the IBF’s decision to strip Saul ‘Canelo’ Alvarez of his middleweight title “an insult to boxing”.Alvarez – the sport’s best-paid fighter – won the title from Daniel Jacobs in May to hold the IBF, WBA and WBC belts.But…