<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _delLocalOwnerRole(self, username):
 """Remove local owner role from parent object """

        parent = self.getParent()
        if parent.portal_type == "Client":
            parent.manage_delLocalRoles([username])
            # reindex object security
            self._recursive_reindex_object_security(parent)