When deleting a public IP, keep in mind:
If the IP address is linked to a service, that service will lose its external IP and will no longer be accessible from the outside.
The same public IP cannot be recovered once deleted.
To delete a public IP:
Navigate to the Networks → Public IP section.
Click the three dots next to the address and select Remove IP address.
Or click on the address and use the delete icon in the top-right corner:
Confirm the deletion.