title: What is the difference between remove and unsetChild methods in layout?
body: <p>What is the difference between <strong>remove</strong> and <strong>unsetChild</strong> methods in layout?</p>
  
  <p>For example (in poll.xml layout file):</p>
  
  <pre><code>&lt;customer_account_index&gt;
      &lt;reference name="right"&gt;
          &lt;action method="unsetChild"&gt;&lt;name&gt;catalog_compare_sidebar&lt;/name&gt;&lt;/action&gt;
      &lt;/reference&gt;
  &lt;/customer_account_index&gt;
  </code></pre>
  
  <p>Why <strong>unsetChild</strong> and not just <strong>remove</strong>?</p>