Remove python from build

.github/workflows/build.yaml

@@ -52,11 +52,6 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v3
-
-    - name: Set up Python
-      uses: actions/setup-python@v3
-      with:
-        python-version: ${{ matrix.python-version }}
     
     - name: Setup Miniconda
       uses: conda-incubator/setup-miniconda@v2.2.0