How to Delete an Existing Custom Package
To delete a custom hosting package, go to your Client Area, click on your profile icon, and select Manage Packages. Find the desired custom hosting package in the Manage Hosting Packages section and click the Actions menu next to it. Select Delete.
After you delete a custom hosting package, the websites already using it will start to use all the resources of the cloud hosting plan (until you assign them to another custom hosting package).