Five months and then leaves: the Chinese Didi Chuxing, Uber’s equivalent in his country, withdrew from the New York Stock Exchange on Friday, where he had been listed since this summer, a victim of the Beijing-Washington technological rivalry. A hard blow for the shareholders: in five months on the New York market, the title Didi will have lost about 45% of its value. Chinese start-ups have long been encouraged to raise funds in the United States to develop. In 2014, e-commerce giant Alibaba carried out the biggest ever IPO on Wall Street, raising $ 25 billion. But in a context…