Golden Tempo, the 152nd annual Kentucky Derby winner, completed his final practice run Saturday morning at Keeneland, as he prepares to head to New York for the 158th annual Belmont Stakes.Golden Tempo's trainer Cherie DeVaux said she is pleased with how the horse has been performing since his big win earlier this month."[He's] been full of himself, kind of quiet and touting himself with confidence," DeVaux said.Golden Tempo leaves for New York …