def remove_duplicates(list1):
    """
    Eliminate duplicates in a sorted list.

    Returns a new sorted list with the same elements in list1, but
    with no duplicates.

    This function can be iterative.
    """
    result = []
    for index in range(len(list1)):
        if list1[index] not in result:
            result.append(list1[index])
    return result