Streamline cuda-api-wrappers-config.cmake + no need to use preprocessing for it

[eyalroz]

We're currently preprocessing a cuda-api-wrappers-config.cmake.in file, to produce ``cuda-api-wrappers-config.cmake`. The processing plants the project name in a couple of places. But - the dependencies in there are project-specific anyway, so the whole exercise is pointless and we can just have the post-preprocessing file (sans a couple of comments) bundled and installed as is.