Thursday night’s series finale at Kauffman Stadium in Kansas City, Mo., featured an old-school pitchers’ duel between Will Warren and Seth Lugo. But it was Paul Goldschmidt’s go-ahead RBI single in the top of the eighth that gave the Yankees the 1-0 victory and helped complete the sweep of the Kansas City Royals. Warren put up zero after zero as the right-hander tossed 5 2/3 scoreless innings, …