A gay man who alleges he was fired as a Roman Catholic church’s music director because he married his male partner does not have a discrimination case against his former employer, a federal judge has held.In a written opinion last week, U.S. District Judge Edmond E. Chang dismissed the lawsuit Sandor Demkovich filed against the Archdiocese of Chicago and St. Andrew the Apostle Parish in Calumet City.Citing cases that included Hosanna-Tabor Evangelical Lutheran Church & School v. Equal Employment Opportunity …