Broncos cut J.D. Walton

J.D. Walton, the Broncos center whose promising career was derailed by a severe ankle injury, has been released. The 26-year-old Walton was the Broncos’ third-round draft pick in 2010 and played all but one snap in the first 38 games of his career. But in Week Four of 2012 he suffered a broken ankle, and…