pyopenssl is a dependency, but it does not seem to be used

[dvzrv]

Hi! :wave:

I'm currently upgrading the package for this project on Arch Linux and noticed that the dependency on PyOpenSSL appears to not be used: https://github.com/search?q=repo%3Aiterative%2FPyDrive2%20OpenSSL&type=code

Is it in the list of dependencies by accident?

cc @grawlinson