How to Hide Bubo Insights Admin Menus

function plt_hide_bubo_insights_menus() {
	//Hide "Bubo Insights".
	remove_menu_page('bubo_insights');
	//Hide "Bubo Insights → Stats".
	remove_submenu_page('bubo_insights', 'bubo_insights');
	//Hide "Bubo Insights → Info".
	remove_submenu_page('bubo_insights', 'bubo_insights_handbook');
	//Hide "Bubo Insights → Settings".
	remove_submenu_page('bubo_insights', 'bubo_insights_settings');
	//Hide "Bubo Insights → Contact Us".
	remove_submenu_page('bubo_insights', 'bubo_insights-contact');
	//Hide "Bubo Insights → Support Forum".
	remove_submenu_page('bubo_insights', 'bubo_insights-wp-support-forum');
	//Hide "Bubo Insights → Upgrade".
	remove_submenu_page('bubo_insights', 'bubo_insights-pricing');
}

add_action('admin_menu', 'plt_hide_bubo_insights_menus', 1000000000);
Where do I put this code?