The Rev. Michael Pfleger has been removed from his ministry at St. Sabina Church as the Archdiocese of Chicago investigates a claim of child sexual abuse from more than 30 years ago. It’s the fifth decades-old accusation against the South Side priest in four years. Pfleger was cleared of the other accusations. In a letter to parishioners Saturday, Cardinal Blase Cupich said the alleged abuse happened at St. Sabina Church more than 30 years ago. He said Pfleger “strongly denied” the…