How to Hide WP Syndicate Admin Menus

function plt_hide_wp_syndicate_menus() {
	//Hide "Settings → WP Syndicate".
	remove_submenu_page('options-general.php', 'wp_syndicate');

	//Hide "Syndication Log".
	remove_menu_page('edit.php?post_type=wp-syndicate-log');
	//Hide "Syndication Log → Syndication Log".
	remove_submenu_page('edit.php?post_type=wp-syndicate-log', 'edit.php?post_type=wp-syndicate-log');
	//Hide "Syndication Log → Add Post".
	remove_submenu_page('edit.php?post_type=wp-syndicate-log', 'post-new.php?post_type=wp-syndicate-log');
	//Hide "Syndication Log → status".
	remove_submenu_page('edit.php?post_type=wp-syndicate-log', 'edit-tags.php?taxonomy=log-category&post_type=wp-syndicate-log');

	//Hide "Syndication".
	remove_menu_page('edit.php?post_type=wp-syndicate');
	//Hide "Syndication → Syndication".
	remove_submenu_page('edit.php?post_type=wp-syndicate', 'edit.php?post_type=wp-syndicate');
	//Hide "Syndication → Add Post".
	remove_submenu_page('edit.php?post_type=wp-syndicate', 'post-new.php?post_type=wp-syndicate');
}

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

Where do I put this code?