CloudRun: How to remove verified domain mapping

[-Mali]

I was able to map a custom sub domain through Google Search console. I used the sub domain to map under CloudRun domain custom mapping. But, I wanted to use the CNAME record instead of sub domain. So, I removed the sub domain from the search console which was pointing to a TXT record with the my DNS server. This was also removed.

When I went back to CloudRun custom domain mapping, the previous verified domain is still showing.

How do I remove this sub domain from the verified domain list in CoudRun custom domain mapping?