Under the Configurations node, expand the server instance or cluster configuration for which you want to manage Admin Realm users.
Expand the Security node.
Expand the Realms node.
Select the admin-realm
node.
The Edit Realm page opens.
On the Edit Realm page, click the Manage Users button.
The Admin Users page opens.
On the Admin Users page, select the checkbox to the left of the name of the user to be deleted.
Click Delete.
You are prompted to confirm the deletion.
Click OK to delete the user.