Vietnam has ordered a vehicle importer to remove navigation apps that show maps reflecting Chinese territorial claims that are rejected by Hanoi, adding to a wave of resistance against maps showing the “nine-dash line”.The country’s automobile registrar told the importer based in northern Vietnam to take the app out of Chinese-made cars it distributes in the country, said Nguyen To An, head of motor-vehicle quality in the registration office.The maps showed the nine-dash line reflecting China’s…