def remove_factualitylayer_layer(self):
        """
        Removes the factualitylayer layer (the old version) (if exists) of the object (in memory)
        """
        if self.factuality_layer is not None:
            this_node = self.factuality_layer.get_node()
            self.root.remove(this_node)
            self.factuality_layer = None

        if self.header is not None:
            self.header.remove_lp('factualitylayer')