code: def delete_node(self, loadbalancer, node):
          
          lb = node.parent
          if not lb:
              raise exc.UnattachedNode("No parent Load Balancer for this node "
                      "could be determined.")
          resp, body = self.api.method_delete("/loadbalancers/%s/nodes/%s" %
                  (lb.id, node.id))
          return resp, body
docs: Removes the node from its load balancer.