\
    Removes content like "1. (C)" from the content.
    
    `content`
        The content of the cable.

def clean_cable_content(content):
    """\
    Removes content like "1. (C)" from the content.
    
    `content`
        The content of the cable.
    """
    for pattern, subst in _CLEAN_PATTERNS:
        content = pattern.sub(subst, content)
    return content