Update ci-cd.yml

Author: Dreamsorcerer

.github/workflows/ci-cd.yml

@@ -204,13 +204,6 @@ jobs:
       run: >-  # `exit 1` makes sure that the job remains red with flaky runs
         pytest --no-cov -vvvvv --lf && exit 1
       shell: bash
-    - name: Run dev_mode tests
-      env:
-        COLOR: yes
-        AIOHTTP_NO_EXTENSIONS: ${{ matrix.no-extensions }}
-        PIP_USER: 1
-      run: python -X dev -m pytest -m dev_mode --cov-append
-      shell: bash
     - name: Turn coverage into xml
       env:
         COLOR: 'yes'