title: 'Variable' is declared but its value is never read VScode
body: <p>I recently switched from Sublime to VScode - one thing that's been bothering me is that when functions and variables are not used, they are grayed out like a comment, with the message on hover, </p>
  
  <blockquote>
    <p>'myVariable' is declared but its value is never read.</p>
  </blockquote>
  
  <p>I can't find any setting to disable this syntax behavior in 'user settings', and I don't have an linter installed either. How do I change this?</p>