Use the following procedure to delete a security domain from your deployment.
Before you begin
Remove all objects, such as users, groups, and administrative roles, that are associated with the security domain. You can remove the objects by deleting them or moving them to another security domain.
In the Security Console, click Administration > Security Domains > Manage Existing.
Use the Search tab or the Browse tab to find the security domain that you want to delete. Some fields are case sensitive.
Click the security domain that you want to delete, and select Delete.