Less than a week after claiming that her marriage to pitcher Kris Benson was "irretrievably broken," Anna Benson has decided not to file for divorce. Her lawyer, Jeffrey Bogart, said in a telephone interview that he rescinded the divorce petition yesterday in Fulton County Superior Court in Atlanta. He filed it last Thursday. "Anna did some soul-searching over the weekend and wants to give a considerable effort to repair her marriage," Bogart said. "She'd like to give this a second chance, and hopefully Kris does as well."