Revert sandbox back to original form.

.github/workflows/_sandbox.yaml

@@ -38,31 +38,4 @@ jobs:
              merge the development branch into the main branch. Remember to
              revert the changes to the sandbox.yml file in the main branch to
              keep it empty for future testing.
-          EOF
-
-  download-artifacts:
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Check out the repository under ${GITHUB_WORKSPACE}
-        uses: actions/checkout@v4
-
-      - name: Download
-        run: |
-          pwd; ls;
-          bash .github/workflows/baselines/download_artifacts.sh 8449523553;
-          ls -l
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload metrics test json logs
-        uses: actions/upload-artifact@v4
-        with:
-          name: all-artifacts
-          path: |
-            8449523553/*
-
-  finalize:
-    needs: [download-artifacts]
-    if: "!cancelled()"
-    uses: ./.github/workflows/_finalize.yaml
-    secrets: inherit
+          EOF