How to Hide Premium Link Cloaker Lite Admin Menus

function plt_hide_premium_link_cloaker_lite_menus() {
	//Hide "PLC Lite".
	remove_menu_page('plcl');
	//Hide "PLC Lite → Cloaked Links".
	remove_submenu_page('plcl', 'plcl');
	//Hide "PLC Lite → Add New Link".
	remove_submenu_page('plcl', 'plcl_add_link');
	//Hide "PLC Lite → Categories".
	remove_submenu_page('plcl', 'plcl_categories');
	//Hide "PLC Lite → Stats".
	remove_submenu_page('plcl', 'plcl_stats');
	//Hide "PLC Lite → Settings".
	remove_submenu_page('plcl', 'plcl_settings');
	//Hide "PLC Lite → Go PRO".
	remove_submenu_page('plcl', 'plcl_go_pro');
}

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

Where do I put this code?