CHICAGO — In his nearly four decades atop Illinois’ political power structure, former House Speaker Michael Madigan was well-known for his aversion to talking on the phone. His arraignment Wednesday on federal corruption charges was no different. Madigan didn’t say a word during the brief telephone hearing, instead letting his attorney, Gil Soffer, enter a not guilty plea on his behalf to a 22-count indictment alleging a nearly decadelong racketeering conspiracy that included numerous acts of bribery and extortion. During the 10-minute session, which, over the objection of prosecutors, was hel…