Need to decommission CDT Cloud SIG content

We removed CDT Cloud SIG from the working group pages: https://ecdtools.eclipse.org. But it still shows up in search results. E.g. search on 'CDT SIG'. Top result is a link to this page: https://ecdtools.eclipse.org/resources/cdt-cloud-sig/. Can we remove this content and/or have it not findable?