HONG KONG/SINGAPORE—Ride-hailing giant Didi Global’s plan to withdraw from the New York stock exchange may create an even deeper chill after this year’s drop-off in Chinese firms’ listings in the world’s most liquid market, bankers and advisers said. Chinese listings in the United States have fallen sharply since Didi debuted in New York on June 30—defying regulators’ wishes to pause the listing—due mainly to concerns about an unprecedented regulatory crackdown on technology companies. Two days after Didi’s $4.4 billion initial public offering, Chinese regulators ordered an investigation into the company which remains underway, ordered app stores to remove 25 of its mobile apps, and blocked the app for new users in mainland China. The regulatory action, alongside the U.S. government’s ongoing threat to delist Chinese companies not compliant with its auditing rules, has already prompted a sharp slowdown in Chinese listings. The second half of this year has been the …