Removing Gutenberg Welcome Panel from Dashboard

WP 4.9.8 is displaying the Gutenberg panel on your dashboard. Gutenberg is the codename for the new WordPress editor which will be releasing in WP 5.0. Right now this welcome panel is creating the confusion to my clients. So I am completely removing it from the Dashboard. Therefore my client will not see it. I added this small PHP snippets in my theme’s functions.php file

if( function_exists( 'wp_try_gutenberg_panel' ) ) {
	// Disable gutenberg welcome panel
	remove_action('try_gutenberg_panel', 'wp_try_gutenberg_panel');
}