title: Dealing with declined pull request in bitbucket
body: <p>I have project hosted on bitbucket and I am hoping someone can explain how to deal with declining a pull request.  </p>
  
  <p>i.e. if someone uses the bitbucket interface to add code, submits a pull request and it turns out their code is bad.</p>
  
  <p>How do I remove/revert the bitbucket repo and delete the branch that bitbucket created for the pull request etc ?</p>