How Can Delete Scheduled Backup from Cpanel ?

I have a scheduled backups every 3 day, i want to delete the previous backups from Cpanel. when open backup manager this message show me: "Any Home Directory backups older than 30 days will be deleted" but i want to delete it now! please give me the way to delete previous backup without waiting 30 days. FYI, the backup links started with : secure227.domain.com:2083 Thank You