Pony.ai, a Chinese self-driving technology startup, is holding off on plans to go public in the US after it was unable to secure Beijing's assurance that it wouldn't be a target of the government's regulatory crackdown on tech companies, according to a Reuters report . Pony.ai was in exclusive talks to go public through a merger with blank-check firm VectoIQ Acquisition II and the company was looking to list by October, sources told Reuters in a report published late Wednesday. The decision makes Pony.ai one of the largest companies to suspend plans to list in the US after China launched…