How to Hide Servebolt Optimizer Admin Menus

function plt_hide_servebolt_optimizer_menus() {
	//Hide "Servebolt".
	remove_menu_page('servebolt-wp');
	//Hide "Servebolt → General".
	remove_submenu_page('servebolt-wp', 'servebolt-wp');
	//Hide "Servebolt → Performance Optimizer".
	remove_submenu_page('servebolt-wp', 'servebolt-performance-optimizer');
	//Hide "Servebolt → Cache".
	remove_submenu_page('servebolt-wp', 'servebolt-cache-purge-control');
	//Hide "Servebolt → General Settings".
	remove_submenu_page('servebolt-wp', 'servebolt-general-settings');
}

add_action('admin_menu', 'plt_hide_servebolt_optimizer_menus', 11);

Where do I put this code?