fix translations and comment text

courses_legacy/templates/_modal_course_complete_en.html

 {% load i18n %}
-<script type="text/ng-template" id="courseCompleteModalEN.html" xmlns="http://www.w3.org/1999/html">
+<script type="text/ng-template" id="courseCompleteModalEN.html">
     <div class="modal-header">
         <button type="button" class="close" ng-click="cancel()" aria-hidden="true">&times;</button>
-        <h4 class="modal-title" id="myModalLabel">
-            {% trans "Course Complete" %}</h4>
     </div>
     <div class="modal-body">
         {% verbatim %}
@@ -26,9 +24,11 @@
                         Click here to edit it
                     </a>.
                 </p>
+                <!--
                 <p ng-hide="cs.can_emmit_receipt">
                     <span>Unfortunately, your receipt cannot be issued:</span>
                 </p>
+                -->
                 <p ng-hide="cs.course_finished">
                     To complete the course, you need to complete {{ cs.min_percent_to_complete }}% of the activities and you have completed {{ cs.percent_progress }}%. Go back to the course home screen and assess what activities you have left to do and to see if there are still activities that haven't been released yet.
                 </p>
@@ -41,6 +41,6 @@
     </div>
     <div class="modal-footer">
         {% comment %} <a href="{% url 'courses_legacy:course_intro' lesson.course.slug %}" class="btn">Course home</a> {% endcomment %}
-        <button type="button" class="btn btn-danger" ng-click="cancel()">{% trans "Close" %}</button>
+        <button type="button" class="btn btn-danger" ng-click="cancel()">Close</button>
     </div>
 </script>

courses_legacy/templates/_modal_course_complete_es.html

 {% load i18n %}
-<script type="text/ng-template" id="courseCompleteModalES.html" xmlns="http://www.w3.org/1999/html">
+<script type="text/ng-template" id="courseCompleteModalES.html">
     <div class="modal-header">
         <button type="button" class="close" ng-click="cancel()" aria-hidden="true">&times;</button>
-        <h4 class="modal-title" id="myModalLabel">
-            {% trans "Course Complete" %}</h4>
     </div>
     <div class="modal-body">
         {% verbatim %}
@@ -26,9 +24,11 @@
                         Haga clic aquí para editar lo
                     </a>.
                 </p>
-                {% comment %} <p ng-hide="cs.can_emmit_receipt">
+                <!-- 
+                <p ng-hide="cs.can_emmit_receipt">
                     <span>Desafortunadamente, su recibo no se puede emitir:</span>
-                </p> {% endcomment %}
+                </p>
+                -->
                 <p ng-hide="cs.course_finished">
                     Para completar el curso, debes terminar {{ cs.min_percent_to_complete }}% de las actividades y ha completado {{ cs.percent_progress }}%.
                 </p>
@@ -40,7 +40,7 @@
         {% endverbatim %}
     </div>
     <div class="modal-footer">
-        {% comment %} a href="{% url 'courses_legacy:course_intro' lesson.course.slug %}" class="btn btn-danger" >Inicio del curso</a> {% endcomment %}
-        <button type="button" class="btn btn-danger" ng-click="cancel()">{% trans "Close" %}</button>
+        <a href="{% url 'courses_legacy:course_intro' lesson.course.slug %}" class="btn btn-danger" >Inicio del curso</a>
+        <button type="button" class="btn btn-danger" ng-click="cancel()">Cerrar</button>
     </div>
 </script>

courses_legacy/templates/_modal_course_complete_pt_br.html

 {% load i18n %}
-<script type="text/ng-template" id="courseCompleteModalPT_BR.html" xmlns="http://www.w3.org/1999/html">
+<script type="text/ng-template" id="courseCompleteModalPT_BR.html">
     <div class="modal-header">
         <button type="button" class="close" ng-click="cancel()" aria-hidden="true">&times;</button>
-        <h4 class="modal-title" id="myModalLabel">
-            {% trans "Course Complete" %}</h4>
     </div>
     <div class="modal-body">
         {% verbatim %}
@@ -27,9 +25,11 @@
                         Clique aqui para editá-lo
                     </a>.
                 </p>
-                {% comment %} <p ng-hide="cs.can_emmit_receipt">
+                <!-- 
+                <p ng-hide="cs.can_emmit_receipt">
                     <span>Infelizmente, seu comprovante não pode ser emitido:</span>
-                </p> {% endcomment %}
+                </p> 
+                -->
                 <p ng-hide="cs.course_finished">
                     Para concluir o curso, você precisa finalizar {{ cs.min_percent_to_complete }}%% das atividades e você concluiu {{ cs.percent_progress }}% .
                 </p>
@@ -42,6 +42,6 @@
     </div>
     <div class="modal-footer">
         {% comment %} <a href="{% url 'courses_legacy:course_intro' lesson.course.slug %}" class="btn" >Início do curso</a> {% endcomment %}
-        <button type="button" class="btn btn-danger" ng-click="cancel()">{% trans "Close" %}</button>
+        <button type="button" class="btn btn-danger" ng-click="cancel()">Fechar</button>
     </div>
 </script>