Merge pull request #6375 from hugovk/rm-deprecated-license_file-metadata

Remove deprecated license_file from setup.cfg

Author: blueyed

setup.cfg

@@ -10,7 +10,6 @@ project_urls =
 author = Holger Krekel, Bruno Oliveira, Ronny Pfannschmidt, Floris Bruynooghe, Brianna Laugher, Florian Bruhin and others
 
 license = MIT license
-license_file = LICENSE
 keywords = test, unittest
 classifiers =
     Development Status :: 6 - Mature