Are former auxiliary functions in private module `lists_and_tuples` necessary?

[dprada]

The following functions in a former version of _private/lists_and_tuples (see the file are probably called by code waiting to be re-implemented. This needs to be checked to confirm their removal.

def list_to_csv_string(obj):

    return ",".join([str(ii) for ii in obj])

def list_to_ssv_string(obj):

    return " ".join([str(ii) for ii in obj])

def are_equal_sets(objects1, objects2):

    if not is_list_or_tuple(objects1):
        objects1=[objects1]
    if not is_list_or_tuple(objects2):
        objects2=[objects2]

    output = False
    if set(objects1)==set(objects2):
        output = True

    return output

[dprada]

They are not necessary, at least with the MolSysMT 0.6.1.