How to Hide Apache Status & Info Admin Menus

function plt_hide_htaccess_server_info_server_status_menus() {
	//Hide the "PerfOps One" menu.
	remove_menu_page('perfopsone-dashboard');
	//Hide the "PerfOps One → Control Center" menu.
	remove_submenu_page('perfopsone-dashboard', 'perfopsone-dashboard');
	//Hide the "PerfOps One → Reports" menu.
	remove_submenu_page('perfopsone-dashboard', 'perfopsone-insights');
}

add_action('admin_menu', 'plt_hide_htaccess_server_info_server_status_menus', 111);

Where do I put this code?