Remove pre-cutover custom domain smoke gate

Author: anth-volk

.github/scripts/modal-custom-domain-smoke.sh

@@ -266,9 +266,6 @@ jobs:
             '${{ needs.resolve-modal-release-config.outputs.config_json }}' \
             '${{ needs.resolve-modal-release-config.outputs.deploy_mode }}'
 
-      - name: Verify production custom domain
-        run: bash .github/scripts/modal-custom-domain-smoke.sh
-
   publish:
     name: Publish to PyPI
     runs-on: ubuntu-latest

.github/scripts/test_modal_custom_domain_smoke.py

@@ -0,0 +1 @@
+Remove the production custom-domain smoke gate from Modal deployment so code can deploy before DNS cutover.