diff --git a/question/type/ddwtos/lang/fr/qtype_ddwtos.php b/question/type/ddwtos/lang/fr/qtype_ddwtos.php
deleted file mode 100644
index e03e126a199..00000000000
--- a/question/type/ddwtos/lang/fr/qtype_ddwtos.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- *
- * @package    qtype_ddwtos
- * @copyright  2011 The Open University
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-$string['addmorechoiceblanks'] = 'Vides pour {no} choix supplémentaires';
-$string['answer'] = 'Réponse';
-$string['correctansweris'] = 'La réponse correcte est : {$a}';
-$string['infinite'] = 'Infini';
-$string['pleaseputananswerineachbox'] = 'Veuillez entrer une réponse dans chaque boîte.';
-$string['pluginname'] = 'Glisser-déposer sur texte';
-$string['pluginname_help'] = 'Entrez une question du type "Le [[1]] saute par-dessus le [[2]]", puis entrez les différents mots possibles pour les intervalles 1 et 2.';
-$string['pluginname_link'] = 'question/type/ddwtos';
-$string['pluginnameadding'] = 'Ajouter un glisser-déposer sur texte';
-$string['pluginnameediting'] = 'Editer un glisser-déposer sur texte';
-$string['pluginnamesummary'] = 'Glissez et déposez des mots pour combler les trous d\'un texte.';
diff --git a/question/type/ddwtos/lang/ru/qtype_ddwtos.php b/question/type/ddwtos/lang/ru/qtype_ddwtos.php
deleted file mode 100644
index 6bebe6b3c23..00000000000
--- a/question/type/ddwtos/lang/ru/qtype_ddwtos.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Local language pack from http://www.moodle.vsu.ru
- *
- * @package    qtype
- * @subpackage ddwtos
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-$string['addmorechoiceblanks'] = 'Шаблоны для ещё {no} вариантов';
-$string['answer'] = 'Ответ';
-$string['correctansweris'] = 'Верный ответ: {$a}';
-$string['infinite'] = 'несколько';
-$string['pleaseputananswerineachbox'] = 'Пожалуйста, введите ответ в каждое поле';
-$string['pluginname'] = 'Перетаскивание в текст';
-$string['pluginnameadding'] = 'Добавить перетаскивание в текст';
-$string['pluginnameediting'] = 'Редактирование перетаскивания в текст';
-$string['pluginnamesummary'] = 'Пропущенные слова в тексте заполняются с помощью перетаскивания';
-$string['pluginname_help'] = 'Напишите текст вопроса как "[[1]] прыгает через [[2]]", затем ниже введите верные слова для меток 1 и 2';