Remove redundant allow_navigation flag on _list_move.html (it's always true)

wagtail/wagtailadmin/templates/wagtailadmin/pages/listing/_navigation_move.html

@@ -4,8 +4,8 @@
 Navigation controls for the page listing in 'move' mode
 {% endcomment %}
 
-<td class="{% if allow_navigation and page.can_descend %}children{% endif %}">
+<td class="{% if page.can_descend %}children{% endif %}">
-    {% if allow_navigation and page.can_descend %}
+    {% if page.can_descend %}
         <a href="{% url 'wagtailadmin_pages_move_choose_destination' page_to_move.id page.id %}" class="icon text-replace icon-arrow-right navigate-pages" title="{% blocktrans with title=page.title %}Explore subpages of '{{ title }}'{% endblocktrans %}">{% trans 'Explore' %}</a>
     {% endif %}
 </td>

wagtail/wagtailadmin/templates/wagtailadmin/pages/move_choose_destination.html

@@ -8,6 +8,6 @@
     </header>
 
     <div class="nice-padding">
-        {% include "wagtailadmin/pages/listing/_list_move.html" with moving=1 allow_navigation=1 pages=child_pages parent_page=viewed_page %}
+        {% include "wagtailadmin/pages/listing/_list_move.html" with moving=1 pages=child_pages parent_page=viewed_page %}
     </div>
 {% endblock %}