Chicago music writer Jim DeRogatis, who spent decades raising awareness about sexual misconduct allegations against R. Kelly, won't be required to testify at the R&B singer's federal trial on child pornography and trial-fixing charges, a judge ruled Wednesday.Lawyers for DeRogatis, who in 2019 released the book “Soulless: The Case Against R. Kelly,” invoked legal protections for the press in a Tuesday filing asking U.S. District Judge Harry D. Leinenweber to quash a defense subpoena that DeRogatis testify this week …