def clean_resource_json(resource_json):
    """ The catalog wants to be smaller, let's drop some stuff """
    for a in ('parent_docname', 'parent', 'template', 'repr', 'series'):
        if a in resource_json:
            del resource_json[a]
    props = resource_json['props']
    for prop in ('acquireds', 'style', 'in_nav', 'nav_title', 'weight',
        'auto_excerpt'):
        if prop in props:
            del props[prop]
    return resource_json
