Make new index with passed location deleted

        Returns
        -------
        new_index : MultiIndex

def delete(self, loc):
        """
        Make new index with passed location deleted

        Returns
        -------
        new_index : MultiIndex
        """
        new_codes = [np.delete(level_codes, loc) for level_codes in self.codes]
        return MultiIndex(levels=self.levels, codes=new_codes,
                          names=self.names, verify_integrity=False)