[functorch.dims] Fix corner cases with permute (#88226)
Previously the permute function was extended to behave like the `order`
function for first-class dimensions. However, unlike `permute`,
`order` doesn't have a keyword argment `dims`, and there is no way to add
it in a way that makes both permute an order to continue to have the same
behavior. So this change just removes the extra functionality of permute,
which wasn't documented anyway. Fixes #88187
Pull Request resolved: https://github.com/pytorch/pytorch/pull/88226
Approved by: https://github.com/zou3519
