Update demo ten (#520)

Co-authored-by: delsim <[email protected]>

Author: delsim

demo/demo/templates/demo_ten.html

@@ -31,14 +31,9 @@ <h1>Multiple Callback Values</h1>
 <p></p>
 <div class="card border-dark">
   <div class="card-body">
-    {%plotly_app slug="multiple-callback-values-expanded" ratio=0.2 %}
+    {%plotly_app slug="multiple-callback-values-expanded" ratio=0.4 %}
   </div>
 </div>
 <p></p>
-<div class="card border-dark">
-  <div class="card-body">
-    {%plotly_app name="FlexibleExpandedCallbacks" ratio=0.2 %}
-  </div>
-</div>
 <p></p>
 {%endblock%}