PITTSBURGH—Gene Clines, a line drive-hitting outfielder for the 1971 World Series champion Pittsburgh Pirates, died Thursday. He was 75. Clines’ wife, Joanne, told the Pirates that Clines died at his home in Bradenton, Florida, site of the team’s longtime spring training home. No cause of death was given. On Sept. 1, 1971, Clines batted second…