Removes a list of terms from the layer
        @type list_timex_ids: list (of strings)
        @param list_timex_ids: list of timex identifier to be removed

def remove_timex3s(self, list_timex_ids):
        """
        Removes a list of terms from the layer
        @type list_timex_ids: list (of strings)
        @param list_timex_ids: list of timex identifier to be removed
        """
        nodes_to_remove = set()
        for timex in self:
            if timex.get_id() in list_timex_ids:
                nodes_to_remove.add(timex.get_node())
                #for removing the previous comment (expected the layer will look like termlayer)
                prv = timex.get_node().getprevious()
                if prv is not None:
                    nodes_to_remove.add(prv)

        for node in nodes_to_remove:
            self.node.remove(node)