Remove enterprise-preview job and workflow (#12350)

Co-authored-by: openhands <openhands@all-hands.dev>

.github/workflows/enterprise-preview.yml

@@ -1,29 +0,0 @@
-# Feature branch preview for enterprise code
-name: Enterprise Preview
-
-# Run on PRs labeled
-on:
-  pull_request:
-    types: [labeled]
-
-# Match ghcr-build.yml, but don't interrupt it.
-concurrency:
-  group: ${{ github.workflow }}-${{ (github.head_ref && github.ref) || github.run_id }}
-  cancel-in-progress: false
-
-jobs:
-  # This must happen for the PR Docker workflow when the label is present,
-  # and also if it's added after the fact. Thus, it exists in both places.
-  enterprise-preview:
-    name: Enterprise preview
-    if: github.event.label.name == 'deploy'
-    runs-on: blacksmith-4vcpu-ubuntu-2204
-    steps:
-      # This should match the version in ghcr-build.yml
-      - name: Trigger remote job
-        run: |
-          curl --fail-with-body -sS -X POST \
-            -H "Authorization: Bearer ${{ secrets.ALLHANDS_BOT_GITHUB_PAT }}" \
-            -H "Accept: application/vnd.github+json" \
-            -d "{\"ref\": \"main\", \"inputs\": {\"openhandsPrNumber\": \"${{ github.event.pull_request.number }}\", \"deployEnvironment\": \"feature\", \"enterpriseImageTag\": \"pr-${{ github.event.pull_request.number }}\" }}" \
-            https://api.github.com/repos/OpenHands/deploy/actions/workflows/deploy.yaml/dispatches

.github/workflows/ghcr-build.yml

@@ -240,21 +240,6 @@ jobs:
           # Add build attestations for better security
           sbom: true
 
-  enterprise-preview:
-    name: Enterprise preview
-    if: github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'deploy')
-    runs-on: blacksmith-4vcpu-ubuntu-2204
-    needs: [ghcr_build_enterprise]
-    steps:
-      # This should match the version in enterprise-preview.yml
-      - name: Trigger remote job
-        run: |
-          curl --fail-with-body -sS -X POST \
-            -H "Authorization: Bearer ${{ secrets.ALLHANDS_BOT_GITHUB_PAT }}" \
-            -H "Accept: application/vnd.github+json" \
-            -d "{\"ref\": \"main\", \"inputs\": {\"openhandsPrNumber\": \"${{ github.event.pull_request.number }}\", \"deployEnvironment\": \"feature\", \"enterpriseImageTag\": \"pr-${{ github.event.pull_request.number }}\" }}" \
-            https://api.github.com/repos/OpenHands/deploy/actions/workflows/deploy.yaml/dispatches
-
   # "All Runtime Tests Passed" is a required job for PRs to merge
   # We can remove this once the config changes
   runtime_tests_check_success: