title: How to remove changes from git commit
body: <p>I have made changes in my branch and then performed a <code>git push</code> and also created PR (pull request).</p>
  <p>Now the PR reviewer instructed me to &quot;<strong>exclude your change to this file</strong>&quot;.</p>
  <p>This message referred to 3 different files. He also told me to remove one folder which I have added from commit.</p>
  <p>So what is the best and easy way to do this, to to exclude files and folder from an existing PR?</p>