Testing Suspended

Testing of this plugin has been temporarily suspended due to an error. It will automatically resume when a new plugin version is released.

How to Hide Lockets Admin Menus

function plt_hide_lockets_menus() {
	//Hide "Lockets".
	remove_menu_page('lockets/lockets.php');
	//Hide "Lockets → Lockets".
	remove_submenu_page('lockets/lockets.php', 'lockets/lockets.php');
	//Hide "Lockets → 楽天ウェブサービス".
	remove_submenu_page('lockets/lockets.php', 'admin_rakuten');
	//Hide "Lockets → リクルートWEBサービス".
	remove_submenu_page('lockets/lockets.php', 'admin_recruit_webservice');
	//Hide "Lockets → じゃらんWebサービス".
	remove_submenu_page('lockets/lockets.php', 'admin_jalan_webservice');
	//Hide "Lockets → Google プレイス".
	remove_submenu_page('lockets/lockets.php', 'admin_gmap');
	//Hide "Lockets → 外部配信β".
	remove_submenu_page('lockets/lockets.php', 'admin_feed');
	//Hide "Lockets → その他アフィリエイト".
	remove_submenu_page('lockets/lockets.php', 'admin_affiliate');
}

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

Where do I put this code?