Remove all shipping dimensions from Google Product Feed

functions.php

<?php

function lw_gpf_remove_shipping_attrs($elements, $product_id) {
 	  unset($elements['shipping_width']);
 	  unset($elements['shipping_length']);
 	  unset($elements['shipping_height']);
 	  return $elements;
}
add_filter( 'woocommerce_gpf_elements_google', 'lw_gpf_remove_shipping_attrs', 11, 2 );