Years of Cro-Mags dis‘chord’ climaxes in E. Village stabbing rampage

What a punk! Former Cro-Mags bassist Harley Flanagan entered the rock ’n’ roll feud Hall of Fame Friday night when he showed up at the CBGB Festival at Webster Hall with a hunting knife — and his own sharp teeth. “They think they’re going to play my f–king music that…