Describe the feature or problem you’d like to solve

Now that golang/go#37278 has landed, we should look to see if it fixes the RSA-2 issues with codespaces and we can stop using a custom crypto fork and remove the replacement in go.mod

Proposed solution

Verify that using the stdlib crypto pkg still works with codespaces and remove usage/replacement of crypto fork.

Additional context

If you can SSH into a codespace, then that means it is working.