1. Log in to your cPanel account.
For instructions on how to log in to your cPanel account, please click here.
2. Under the Files section, click FTP Accounts.
3. Under FTP Accounts, click Delete for the FTP account you wish to delete.
4. You can delete the entire directory by ticking the Delete the User's Home Directory option. Otherwise, leave this option unticked if you want to revoke FTP access. Once completed, click the Delete button.