as we do no longer use BXDK we can drop the secret setup from ci tests

Author: mpneuried

.github/workflows/ci.yml

@@ -26,12 +26,6 @@ jobs:
       - name: Check out Repository
         uses: actions/checkout@v4
 
-      - name: Set up SSH Agent
-        uses: webfactory/ssh-agent@v0.9.0
-        with:
-          ssh-private-key: |
-            ${{ secrets.DEPLOY_KEY_SDK_INTERNAL_API_ELIXIR }}
-
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with: