Revert "Confirm that I know how to update the banner (#7397)" (#7398)

This reverts commit 5b3770f.

Author: ralphbean

components/konflux-info/staging/stone-stg-rh01/banner-content.yaml

@@ -1,4 +1,2 @@
 - type: info
   summary: Want to **display important updates** here? [See how to create a banner](https://github.com/redhat-appstudio/infra-deployments/blob/main/components/konflux-info/README.md).
-- type: info
-  summary: Testing notice to confirm that I know how to add banner updates. 👋