Suppress WooCommerce nags

woocommerce-nags.php

<?php

/**
 * Suppress certain WooCommerce admin notices
 */
function suppress_woocommerce_nags() {
	if ( class_exists( 'WC_Admin_Notices' ) ) {
		// Remove the "you have outdated template files" nag
		WC_Admin_Notices::remove_notice( 'template_files' );
		
		// Remove the "install pages" nag
		WC_Admin_Notices::remove_notice( 'install' );
	}
}

add_action( 'wp_loaded', 'suppress_woocommerce_nags', 99 );

/**
 * Hide the "install the WooThemes Updater" nag
 */
remove_action( 'admin_notices', 'woothemes_updater_notice' );