Clean up testing

.github/workflows/python-app.yml

@@ -23,11 +23,6 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: "3.10"
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Test
       run: |
         make test