How to Hide Cyphex Image Hunter Admin Menus

function plt_hide_cyphex_image_hunter_menus() {
	//Hide "Cyphex Hunter".
	remove_menu_page('cyphex-image-hunter');
	//Hide "Cyphex Hunter → Cyphex Hunter".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-image-hunter');
	//Hide "Cyphex Hunter → Bulk Toolkit".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-bulk-toolkit');
	//Hide "Cyphex Hunter → AI Logo Lab".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-logo-lab');
	//Hide "Cyphex Hunter → Direct Sideload".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-direct-sideload');
	//Hide "Cyphex Hunter → User Handbook".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-handbook');
	//Hide "Cyphex Hunter → Settings".
	remove_submenu_page('cyphex-image-hunter', 'cyphex-settings');
}

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

Where do I put this code?