title: How to fully remove Xcode 4
body: <p>I want to remove all existing SDK versions as well as Xcode 4.</p>
  
  <p>Xcode 4 Guide says to do this:</p>
  
  <pre><code>sudo /Xcode4/Library/uninstall-devtools --mode=all
  </code></pre>
  
  <p>But I don't have Xcode4 at this location and the only place I see it is under <code>/Developer/Applications</code></p>
  
  <p>I've already run the uninstall-devtools that was previously found in <code>/Developer/Applications</code> and then did a reinstall.</p>
  
  <p>What else can I do to completely remove everything and start from scratch?</p>