How to Hide WP Admin UI Admin Menus

function plt_hide_wp_admin_ui_menus() {
	//Hide "WP Admin UI".
	remove_menu_page('wpui-option');
	//Hide "WP Admin UI → WP Admin UI".
	remove_submenu_page('wpui-option', 'wpui-option');
	//Hide "WP Admin UI → Login".
	remove_submenu_page('wpui-option', 'wpui-login');
	//Hide "WP Admin UI → Global".
	remove_submenu_page('wpui-option', 'wpui-global');
	//Hide "WP Admin UI → Dashboard".
	remove_submenu_page('wpui-option', 'wpui-dashboard');
	//Hide "WP Admin UI → Admin Menu".
	remove_submenu_page('wpui-option', 'wpui-admin-menu');
	//Hide "WP Admin UI → Admin Bar".
	remove_submenu_page('wpui-option', 'wpui-admin-bar');
	//Hide "WP Admin UI → Editor".
	remove_submenu_page('wpui-option', 'wpui-editor');
	//Hide "WP Admin UI → Media Library".
	remove_submenu_page('wpui-option', 'wpui-library');
	//Hide "WP Admin UI → Profile".
	remove_submenu_page('wpui-option', 'wpui-profil');
	//Hide "WP Admin UI → Role Manager".
	remove_submenu_page('wpui-option', 'wpui-roles');
	//Hide "WP Admin UI → Import / Export / Reset".
	remove_submenu_page('wpui-option', 'wpui-import-export');
}

add_action('admin_menu', 'plt_hide_wp_admin_ui_menus', 10000);

Where do I put this code?