Remove dependency on find_cuda_helper

[coreylowman]

To reduce dependencies

[M1ngXU]

is it really necessary? isn't the dep small anyway?

[coreylowman]

It's a small one, but every dependency adds up. We can see how much time it actually saves by removing it.

I'd also like to fix and issue that I have every time I use GPUs on cloud.lambdalabs, which is I need to run

sudo ln -s /usr/lib/cuda /usr/local/cuda

for find_cuda_helper to find it.

[M1ngXU]

Ah ok, makes sense. Didn't know that such a small dependency adds that much compile time 😅

[quietlychris]

I believe I ran into the same issue with find_cuda_helper as well on a Pop!_OS installation (basically Ubuntu) regarding the cuda path not being one of the defaults in that crate anyway, which took a bit minute to track down.