A landmark East Boston diner’s owner has been charged with cheating the state out of $60,000 in taxes on $861,000 worth of eggs, pancakes and coffee orders.Donna Marquardo, 58, of Lynn, owner of Donna’s Restaurant at Saratoga and Bennington streets in Orient Heights, was due to be arraigned yesterday in East Boston District Court — but her case was pushed off to April 18 when Judge John E. McDonald Jr. recused himself after disclosing the two have a familial connection.Neither Marquardo nor her attorney William Lovett could be reached for comment.