style changes and remove spurious runc test call at the bottom

.github/workflows/build.yml

@@ -191,6 +191,3 @@ jobs:
       - name: Test with pytest
         shell: powershell
         run: pytest
-
-
-    

test_all.py

@@ -87,5 +87,3 @@ def test_python():
     text = text.encode('ascii') # turn into bytes
 
     assert text == expected_stdout
-
-test_runc()