uncommented out unnecessary codes

src/server/views/admin/external-accounts.html

@@ -1,4 +1,4 @@
-<!-- {% extends '../layout/admin.html' %}
+{% extends '../layout/admin.html' %}
 
 {% block html_title %}{{ customizeService.generateCustomTitleForFixedPageName(t('external_account_management')) }}{% endblock %}
 
@@ -8,5 +8,4 @@
 
 {% block content_main %}
 <div id="admin-external-account-setting"></div>
-{% endblock content_main %} -->
-hoge
+{% endblock content_main %}