title: Delete fork dependency of a GitHub repository
body: <p>How can I make GitHub forget or disassociate that my repo was originally a fork of another project?</p>
  
  <p>I forked a project in GitHub. I can now see "forked from whatever/whatever". The parent repository "whatever/whatever" is no longer maintained. I have been allowed to continue use of the code base of the original repository to create an independent repository.</p>
  
  <p>Is there a way to detach my project from the original repository?</p>