WordPress Version: 5.4
/**
* Retrieves the post non-image attachment fields to edit form fields.
*
* @since 2.8.0
*
* @param array $form_fields An array of attachment form fields.
* @param WP_Post $post The WP_Post attachment object.
* @return array Filtered attachment form fields.
*/
function media_post_single_attachment_fields_to_edit($form_fields, $post)
{
unset($form_fields['image_url']);
return $form_fields;
}