Uninstall the pre-commit hooks.

def uninstall(hook_type='pre-commit'):
    """Uninstall the pre-commit hooks."""
    hook_path, legacy_path = _hook_paths(hook_type)

    # If our file doesn't exist or it isn't ours, gtfo.
    if not os.path.exists(hook_path) or not is_our_script(hook_path):
        return 0

    os.remove(hook_path)
    output.write_line('{} uninstalled'.format(hook_type))

    if os.path.exists(legacy_path):
        os.rename(legacy_path, hook_path)
        output.write_line('Restored previous hooks to {}'.format(hook_path))

    return 0