Description of problem:
python-cryptography builds depend on python-cryptography-vectors package. The package provides test vectors for cryptography's test suite. The vectors package must be kept in sync with the cryptography package.

This hard dependency makes updates of cryptography slow, complicated, and tedious. I have to request a side-tag for every Fedora version, build the vectors package first, wait 10 to 30 minutes until its available in buildroot, then build the actual package. It's even more annoying for RHEL.

I would like to get rid of the external python-cryptography-vectors package and add the vectors to the python-cryptography source package.

- upstream has vectors in the same git as the main package
- the packages are only split on PyPI and Fedora
- python3-cryptography-vectors is only used as build dependency of python-cryptography source package

Miro and I discussed the issue. He suggested that I can simply use the source tarball from Github. I also propose to drop the -vectors package.

Version-Release number of selected component (if applicable):
python-cryptography-3.4.6-1