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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def clean_file_system_paths_from_not_existing_paths(file_system_paths):
 """Cleans list of paths from elements that do not exist If a path is no more valid/existing, it is removed from the list. :param list[str] file_system_paths: list of file system paths to be checked for existing """

    paths_to_delete = []
    for path in file_system_paths:
        if not os.path.exists(path):
            paths_to_delete.append(path)
    for path in paths_to_delete:
        file_system_paths.remove(path)