For the first time in 30 years, a world champion at the All-American Soap Box Derby has been stripped of his title. Wilton Blakely, 13, of Huntersville, N.C., winner of the rally stock championship, lost his title late Saturday evening after derby officials discovered violations in how his car was built and configured.Wilton Blakely Runner-up Koby Garnhart, 11, of Winnebago, Ill., has been declared the new winner in that division. Derby spokesman Bob Troyer said there are no other plans to pursue any further disciplinary actions against Wilton. ``I think the disqualification in itself is the disciplinary action,'' said Troyer....