How To Remove Subdomain
To remove an existing subdomain, perform the following steps:
1 – Open cPanel (yourdomain/cpanel).
2 – Click on (Subdomains) from Domains section.
3 – Click the Remove link that corresponds to the subdomain that you want to remove.
4 – Click Yes to confirm that you want to remove the subdomain.
5 – To keep the subdomain, click No.