ci: remove additional python setup

Author: kpsherva

.github/workflows/tests.yml

@@ -45,11 +45,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with: