Reset the Product form for all products to ‘Standard’

<?php 

 // reset WC Vendors Product form to standard 

 add_action( 'template_redirect', 'reset_product_form_type' ); 

 function reset_product_form_type(){ 

	$args = array ( 

		'post_type'  => 'product',

		'posts_per_page'  => -1,

		'meta_query' => array( 

				array( 

					'key' => '_wcv_product_form_template', 

					'value' => 'simple'

				), 

			),

	); 

	$product_query = new WP_Query( $args ); 

	foreach (  $product_query->get_posts() as $product_id => $product ) {

		update_post_meta( $product->ID, '_wcv_product_form_template', '' );

	}

 }