simplify "if"

src/server/views/widget/page_tabs.html

@@ -53,17 +53,13 @@
   <!-- revision-history -->
   {% if page.isPortal() %}
     <li class="nav-item ml-md-auto">
-      <a class="nav-link" href="#revision-history" role="tab" data-toggle="tab">
-        <i class="icon-layers"></i><span class="hidden-xs"> {{ t('History') }}</span>
-      </a>
-    </li>
     {% else %}
-      <li class="nav-item">
+    <li class="nav-item">
+  {% endif %}
         <a class="nav-link" href="#revision-history" role="tab" data-toggle="tab">
           <i class="icon-layers"></i><span class="hidden-xs"> {{ t('History') }}</span>
         </a>
       </li>
-  {% endif %}
 
   <!-- icon-options-vertical -->
   {% if !isTrashPage() %}