Delete Magento images programmatically

$productId =1;
$loadpro=Mage::getModel('catalog/product')->load($product->getId());
$mediaApi = Mage::getModel("catalog/product_attribute_media_api");
$mediaApiItems = $mediaApi->items($product->getId());

foreach($mediaApiItems as $item)
{ 
 $mediaApi->remove($loadpro->getId(), $item['file']); 
}
$loadpro->save();

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