Deprecate Nvidia CUDA recipes

[homebysix]

Nvidia CUDA 10.2 (toolkit and driver) was the last release to support macOS. Details:

• https://docs.nvidia.com/cuda/archive/10.2/cuda-toolkit-release-notes/index.html#title-new-features
• https://mjtsai.com/blog/2019/11/25/nvidia-drops-cuda-support-for-macos/
• https://gizmodo.com/apple-and-nvidia-are-over-1840015246

Related: https://github.com/autopkg/jessepeterson-recipes/pull/96, https://github.com/autopkg/jps3-recipes/pull/91