DAVIDSON, N.C. — Davidson basketball coach Bob McKillop is retiring after 33 seasons at the school. McKillop, 71, announced his retirement at a Friday news conference that was originally billed as one to honor Steph Curry, who just won his fourth NBA championship with Golden State. But while Curry’s number will be retired, the McKillop news quickly usurped it. McKillop will be succeeded by his son, Matt McKillop, effective immediately, “not because he’s Bob’s son, but because he’s the best man for the job,” Davidson athletic director Chris Clunie said. Matt McKillop played for his father for f…