I've removed the domain and its subdomain from your account. Since there is a risk of data loss when domains are removed, I made a full account backup for you before doing so, in case you need any files from the old domains. You can download the backup here: https://heliohost.org/backup
If you're not sure how to extract the backup files, please follow our how-to guide here: https://wiki.helionet.org/Account_Backups