code: def remove_links_to_self(self):
          
          self.link_list = [link for link in self.link_list if
                            link.target != self]
docs: Remove any link in ``self.link_list`` whose ``target`` is ``self``.
  
          Returns: None
  
          Example:
              >>> node_1 = Node('One')
              >>> node_1.add_link(node_1, 5)
              >>> node_1.remove_links_to_self()
              >>> len(node_1.link_list)
              0