title: How to remove old builds in jenkins?
body: <p>I removed old build folders from the build directory in Jenkins expecting them to be removed in the UI, unfortunately whilse these build directories are gone, their UI link still exists. I now have two questions:</p>
  <ol>
  <li>How can I get rid of the defunct links in the UI?</li>
  <li>How can I delete old build from cli and have it reflected in the UI?</li>
  </ol>