Delete all usermeta on uninstall with prefix woocommerce_

uninstall.php

@@ -51,17 +51,15 @@
 	// Delete options.
 	$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name LIKE 'woocommerce\_%';" );
 
+	// Delete usermeta.
+	$wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key LIKE 'woocommerce\_%';" );
+
 	// Delete posts + data.
 	$wpdb->query( "DELETE FROM {$wpdb->posts} WHERE post_type IN ( 'product', 'product_variation', 'shop_coupon', 'shop_order', 'shop_order_refund' );" );
 	$wpdb->query( "DELETE meta FROM {$wpdb->postmeta} meta LEFT JOIN {$wpdb->posts} posts ON posts.ID = meta.post_id WHERE posts.ID IS NULL;" );
 	$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}woocommerce_order_items" );
 	$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}woocommerce_order_itemmeta" );
 
-	// Delete user meta data.
-	foreach ( array( 'woocommerce_keys_per_page', 'woocommerce_webhooks_per_page' ) as $meta_key ) {
-		delete_metadata( 'user', 0, $meta_key, '', true );
-	}
-
 	// Delete terms if > WP 4.2 (term splitting was added in 4.2).
 	if ( version_compare( $wp_version, '4.2', '>=' ) ) {
 		// Delete term taxonomies.