Merge pull request #514 from kevin-bates/drop-pywin32

Drop dependency on pywin32

Author: SylvainCorlay

setup.cfg

@@ -41,7 +41,6 @@ install_requires =
     Send2Trash
     terminado>=0.8.3
     prometheus_client
-    pywin32>=1.0 ; sys_platform == 'win32'
     anyio>=2.0.2,<3 ; python_version < '3.7'
     anyio>=3.0.1,<4 ; python_version >= '3.7'
     websocket-client