Remove usage of extract-metada GHA action from test-setup-e2e-environment-action

The variables set by extract-metadate were not used (anymore)

Author: Janne Rönkkö

.github/workflows/test-setup-e2e-environment-action.yml

@@ -56,9 +56,6 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Retrieve branch name
-        uses: HSLdevcom/jore4-tools/github-actions/extract-metadata@extract-metadata-v1
-
       - name: Create a temporary custom docker compose file for testing
         run: |
           touch custom-compose.yml