title: Removing an Item from Magento's Admin Panel Navigation
body: <p>Using the Magento Ecommerce system, is is possible to remove an item from the Admin Panel Navigation menu?  More generally, is there a way to use the config override system to <em>remove</em> existing elements from a configuration?</p>
  
  <p>I know I can add to the navigation with an override that looks something like this</p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;config&gt;
      &lt;modules&gt;
          &lt;Company_Module&gt;
              &lt;version&gt;
                  0.1.0
              &lt;/version&gt;
          &lt;/Company_Module&gt;
      &lt;/modules&gt;
  
      &lt;adminhtml&gt;
          &lt;menu&gt;
               &lt;cms translate="title" module="cms"&gt;
                  &lt;title&gt;The CMS&lt;/title&gt;
                  &lt;sort_order&gt;70&lt;/sort_order&gt;
                  &lt;children&gt;
                      &lt;foo translate="title" module="cms"&gt;
                          &lt;title&gt;Foo Item&lt;/title&gt;
                          &lt;action&gt;adminhtml/foo&lt;/action&gt;
                      &lt;/foo&gt;
                  &lt;/children&gt;
               &lt;/cms&gt;
          &lt;/menu&gt;    
      &lt;/adminhtml&gt;
  &lt;/config&gt;
  </code></pre>
  
  <p>but how would/could I completely suppress the CMS navigation item? </p>