We don't build --universal

Author: Kurt Yoder

RELEASE.md

@@ -7,6 +7,6 @@ To release:
 * `git push origin master`
 * Create/activate virtualenv, and `pip install twine`
     * **MUST** be Python 3.7 or later!
-* `python setup.py bdist_wheel --universal`
+* `python setup.py bdist_wheel`
 * `twine upload dist/$(ls -tr dist/ | tail -1)`
 * Create Github release, named as version