remove unrelated changes

Author: altendky

tox.ini

@@ -15,12 +15,10 @@ deps=
     qt5reactor: pytest-xvfb
     qt5reactor: pyqt5
     win: pywin32
-setenv=
-    defaultreactor: REACTOR = default
-    qt5reactor: REACTOR = qt5reactor
-    asyncioreactor: REACTOR = asyncio
 commands=
-    pytest --reactor={env:REACTOR}
+    defaultreactor: pytest --reactor=default
+    qt5reactor: pytest --reactor=qt5reactor
+    asyncioreactor: pytest --reactor=asyncio
 sitepackages=False
 download=true