code: def remove(self, product, img_file_name, identifierType=None):
          
          return self.call('catalog_product_attribute_media.remove',
                  [product, img_file_name, identifierType])
docs: Remove a product image.
  
          :param product: ID or SKU of product
          :param img_file_name: The image file name
              Example: '/m/y/my_image_thumb.jpg'
          :param identifierType: Defines whether the product or SKU value is
                                 passed in the "product" parameter.
  
          :return: boolean