How to Hide podcast player Admin Menus

function plt_hide_podcast_player_menus() {
	//Hide "Podcast Player".
	remove_menu_page('pp-options');
	//Hide "Podcast Player → Podcast Player".
	remove_submenu_page('pp-options', 'pp-options');
	//Hide "Podcast Player → Shortcode".
	remove_submenu_page('pp-options', 'pp-shortcode');
	//Hide "Podcast Player → Settings".
	remove_submenu_page('pp-options', 'pp-settings');
	//Hide "Podcast Player → Toolkit".
	remove_submenu_page('pp-options', 'pp-toolkit');
	//Hide "Podcast Player → Help & Support".
	remove_submenu_page('pp-options', 'pp-help');
	//Hide "Podcast Player → Other Products".
	remove_submenu_page('pp-options', 'pp-products');
}

add_action('admin_menu', 'plt_hide_podcast_player_menus', 11);
Where do I put this code?