Delete the page (content) property e.g. delete key of hash
        :param page_id: content_id format
        :param page_property: key of property
        :return:

def delete_page_property(self, page_id, page_property):
        """
        Delete the page (content) property e.g. delete key of hash
        :param page_id: content_id format
        :param page_property: key of property
        :return:
        """
        url = 'rest/api/content/{page_id}/property/{page_property}'.format(page_id=page_id,
                                                                           page_property=str(page_property))
        return self.delete(path=url)