Parent publisher HarperCollins made the announcement today. It's not a big surprise, considering that the imprint's impresario, Judith Regan, was fired last month. Regan had moved her small staff out here with the hope of tying book deals with TV and movie projects, but her ill-advised arrangement with O.J Simpson was the beginning of the end. And the HarperCollins folks were always a little dubious about L.A. as a publishing town. Cal Morgan, editorial director, will move to the NY offices of HarperCollins, though ReganBooks' publicity director is staying here. By the way, HC is pulling Peter Golenbock's "7: The Mickey Mantle Novel," which had been getting almost as much bad press as Simpson's "If I Did It." NYT