Update pythonapp.yml

.github/workflows/pythonapp.yml

@@ -24,7 +24,3 @@ jobs:
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
-    - name: Test with pytest
-      run: |
-        pip install pytest
-        pytest