code: def remove(self, parent, child):
          
          self.remove_links(parent, (child,))
          if parent not in self and parent in self._parent_to_not_ok:
              del self._parent_to_not_ok[parent]
          if child not in self and child in self._parent_to_not_ok:
              del self._parent_to_not_ok[child]
docs: Remove a dependency between parent and child.
  
          Parameters
          ----------
          parent : boolean instance of :class:`katcp.Sensor`
              The sensor that used to depend on child.
          child : boolean instance of :class:`katcp.Sensor` or None
              The sensor parent used to depend on.