A federal judge on Wednesday ordered R&B superstar R. Kelly to stand trial in Chicago on child pornography and obstruction of justice charges next year after the scheduled sentencing for his conviction in an earlier sex trafficking trial in New York.U.S. District Judge Harry Leinenweber appeared to have wanted the trial in Chicago to begin earlier, but he set it for Aug. 1 after one of Kelly’s attorneys, Steven Greenberg, said that he another of Kelly’s attorneys will be in trial on other cases through July …