How to Hide TokenICO Admin Menus

function plt_hide_tokenico_cryptocurrency_token_launchpad_presale_ico_ido_airdrop_menus() {
	//Hide "BeycanPress Plugins".
	remove_menu_page('beycanpress-plugins');

	//Hide "TokenICO".
	remove_menu_page('tokenico-creator');
	//Hide "TokenICO → Creator".
	remove_submenu_page('tokenico-creator', 'tokenico-creator');
	//Hide "TokenICO → Settings".
	remove_submenu_page('tokenico-creator', 'tokenico-settings');
}

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

Where do I put this code?