Remove universal wheels
Remove universal wheels

Universal wheels are only meant for packages that support both Python 2 and Python 3:

https://packaging.python.org/guides/distributing-packages-using-setuptools/#universal-wheels

> Universal Wheels are wheels that are pure Python (i.e. contain no compiled extensions) and support Python 2 and 3. This is a wheel that can be installed anywhere by pip.
Bachmann1234/diff-cover,Bachmann1234/diff-cover