They don't have to kill it by taking it away, they can just let it die on the vine, or take bike share in a direction that's good for the company but not good for users. Who knows, at this point it's all speculation of course.
They city is already letting it languish a bit, by not expanding the the very successful Citi Bike system, because our fearless mayor doesn't have the political spine to take a few parking spots in order to provide something that will provide more transportation to more people than storage for one private automobile.