ci(deploy): drop unprovisioned prod dispatch path

.github/workflows/deploy.yml

@@ -67,16 +67,16 @@ jobs:
     name: Deploy shoc-backend to Elastic Beanstalk
     if: >
       github.event_name == 'workflow_dispatch' &&
-      contains(fromJSON('["refs/heads/dev","refs/heads/staging","refs/heads/main"]'), github.ref)
+      contains(fromJSON('["refs/heads/dev","refs/heads/staging"]'), github.ref)
     needs: validate
     runs-on: ubuntu-latest
     permissions:
       contents: read
       id-token: write
     environment:
-      name: ${{ github.ref_name == 'main' && 'prod' || github.ref_name }}
+      name: ${{ github.ref_name }}
     concurrency:
-      group: deploy-${{ github.ref_name == 'main' && 'prod' || github.ref_name }}
+      group: deploy-${{ github.ref_name }}
       cancel-in-progress: false
     steps:
       - name: Checkout
@@ -97,11 +97,6 @@ jobs:
               environment=shoc-backend-staging
               smoke_url=https://api.staging.seahaven.com
               ;;
-            main)
-              application=shoc-backend
-              environment=shoc-backend-prod
-              smoke_url=https://api.seahaven.com
-              ;;
             *)
               echo "Unsupported ref ${GITHUB_REF_NAME}" >&2
               exit 1