update some account templates

templates/account/password_change.html

@@ -1,7 +1,6 @@
-{% extends "account/base.html" %}
+{% extends "base.html" %}
 
 {% load i18n %}
-{% load bootstrap %}
 
 {% block content_class %}account account-password{% endblock %}
 
@@ -14,10 +13,10 @@
                 <legend>{% trans "Change password" %}</legend>
                 <fieldset>
                     {% csrf_token %}
-                    {{ form|bootstrap }}
+                    {{ form }}
                     <button type="submit" class="btn btn-primary">{% trans "Save" %}</button>
                 </fieldset>
             </form>
         </div>
     </div>
-{% endblock %}
+{% endblock %}