Remove old commented GH Action job

.github/workflows/deps_eager.yml

@@ -74,30 +74,3 @@ jobs:
 
     - name: Run previously skipped tests for adapter conversion
       run: pytest -rs --cov=./optimade/ --cov-report=xml --cov-append tests/adapters/
-
-  # deps_clean-install:
-  #   runs-on: ubuntu-latest
-  #   strategy:
-  #     fail-fast: false
-  #     max-parallel: 2
-  #     matrix:
-  #       python-version: [3.6, 3.7, 3.8]
-
-  #   steps:
-  #   - uses: actions/checkout@v2
-
-  #   - name: Set up Python ${{ matrix.python-version }}
-  #     uses: actions/setup-python@v1
-  #     with:
-  #       python-version: ${{ matrix.python-version }}
-
-  #   - name: Install latest versions of immediate dependencies
-  #     run: |
-  #       python -m pip install --upgrade pip
-  #       pip install -U setuptools
-  #       # Install all dependencies "as a user", i.e., a clean install
-  #       pip install -e .[all]
-
-  #   - name: Run tests on updated packages
-  #     run: |
-  #       pytest -rs --cov=./optimade/