How to Hide Auto Robot Lite - RSS Feed Autoblogging Admin Menus

function plt_hide_auto_robot_menus() {
	//Hide "Auto Robot".
	remove_menu_page('auto-robot');
	//Hide "Auto Robot → Dashboard".
	remove_submenu_page('auto-robot', 'auto-robot');
	//Hide "Auto Robot → Campaigns".
	remove_submenu_page('auto-robot', 'auto-robot-campaign');
	//Hide "Auto Robot → New Campaign".
	remove_submenu_page('auto-robot', 'auto-robot-welcome');
	//Hide "Auto Robot → Settings".
	remove_submenu_page('auto-robot', 'auto-robot-settings');
	//Hide "Auto Robot → Integrations ⇪".
	remove_submenu_page('auto-robot', 'auto-robot-integrations');
	//Hide "Auto Robot → Import / Export ⇪".
	remove_submenu_page('auto-robot', 'auto-robot-import');
	//Hide "Auto Robot → Logs ⇪".
	remove_submenu_page('auto-robot', 'auto-robot-logs');
	//Hide "Auto Robot → Pro Version ⇪".
	remove_submenu_page('auto-robot', 'auto-robot-upgrade');
	//Hide "Auto Robot → Contact Us".
	remove_submenu_page('auto-robot', 'auto-robot-contact');
	//Hide "Auto Robot → Upgrade".
	remove_submenu_page('auto-robot', 'auto-robot-pricing');
}

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