title: How to select node types which are HtmlNodeType.Comment using HTMLAgilityPack
body: <p>I wish to remove from html things like</p>
  
  <pre><code>&lt;!--[if gte mso 9]&gt;
  ...
  &lt;![endif]--&gt;
  
  
  &lt;!--[if gte mso 10]&gt;
  ...
  &lt;![endif]--&gt;
  </code></pre>
  
  <p>How to do this in C# using HTMLAgilityPack?</p>
  
  <p>I'm using</p>
  
  <pre><code>static void RemoveTag(HtmlNode node, string tag)
          {
              var nodeCollection = node.SelectNodes("//"+ tag );
              if(nodeCollection!=null)
                  foreach (HtmlNode nodeTag in nodeCollection)
                  {
                      nodeTag.Remove();
                  }
          }
  </code></pre>
  
  <p>for normal tags.</p>