Talk about the end of an era since the comedy producer was there for 30+ years. But I’m told that Lorne Michaels has just left Brillstein Entertainment Partners because his long-time manager and producer partner Bernie Brillstein died this summer. So Lorne has “decided to move on,” an insider tells me about the relationship that included Saturday Night Live since its inception in 1975. Michaels is not seeking another manager. Instead, he’ll stay parked with his agency CAA and his law firm Loeb & Loeb.