Revert "Update molecule.yml"

This reverts commit fd70231.

Author: alessfg

.github/workflows/molecule.yml

@@ -77,9 +77,6 @@ jobs:
       #   with:
       #     platforms: aarch64,s390x
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Set up Python 3
         if: ${{ !(contains(matrix.scenario, 'plus')) || (env.NGINX_CRT != 0 && env.NGINX_KEY != 0) }}
         uses: actions/setup-python@v5