Don't publish univeral (Python2 / Python 3) wheels (#1423)

Author: alexrudd2

MAKE_RELEASE.rst

@@ -28,7 +28,7 @@ Prepare/make release on dev.
 * on local repo
    * git pull, check release tag is pulled
    * git checkout v3.0.0dev0
-   * python3 setup.py sdist bdist_wheel --universal
+   * python3 setup.py sdist bdist_wheel
    * twine upload dist/*  (upload to pypi)
    * Double check Read me docs are updated
       * trigger build https://readthedocs.org/projects/pymodbus/builds/

setup.cfg

@@ -543,7 +543,6 @@ upload_dir = build/sphinx/html
 
 
 [bdist_wheel]
-universal=1
 
 
 [tool:pytest]