update GH action to drop Jenkins references

.github/actions/docs-preview/action.yml

@@ -28,14 +28,10 @@ runs:
           const { REPO, PR, PREVIEW_PATH } = process.env
 
           const comment = `A documentation preview will be available soon.<br>
-          Help us out by validating the Buildkite preview and reporting issues [here](https://github.com/elastic/docs/issues/new?labels=buildkite-migration,bug).
-          Please also be sure to **double check all images to ensure they are correct** in the preview.
 
           - 🔨 Buildkite [builds](https://buildkite.com/elastic/docs-build-pr/builds?meta_data[repo_pr]=${REPO}_${PR})
-          - 📚 HTML diff: [Buildkite](https://${REPO}_bk_${PR}.docs-preview.app.elstc.co/diff)  - [Jenkins](https://${REPO}_${PR}.docs-preview.app.elstc.co/diff)
-          - 📙 Preview: [Buildkite](https://${REPO}_bk_${PR}.docs-preview.app.elstc.co/${PREVIEW_PATH})  -  [Jenkins](https://${REPO}_${PR}.docs-preview.app.elstc.co/${PREVIEW_PATH})
-          - 🧪 [Buildkite vs Jenkins diff](https://github.com/elastic/built-docs/compare/${REPO}_bk_${PR}..${REPO}_${PR})
-
+          - 📚 HTML [diff](https://${REPO}_${PR}.docs-preview.app.elstc.co/diff)
+          - 📙 Preview [page](https://${REPO}_${PR}.docs-preview.app.elstc.co/${PREVIEW_PATH})
 
           <details>
           <summary>Request a new doc build by commenting</summary>