Unlinks a permission role from the group.
Removes a link from SoftLayer_User_Permission_Role object to the group.
|role||SoftLayer_User_Permission_Role||Permission Role to be unlinked.|
Throws the exception “Can’t unlink role and group: Permission Denied.” if a customer user attempts this request without the proper permission.
Throws the exception “Invalid role” if the permission role does not exist.