title: How to delete all comments in a selected code section?
body: <p>Every once in a while, my code gets littered with many useless comments, most of them are obsolete lines of code, and some are obsolete "memos to self".<br>
  So I was wondering if there's a way to just select a code section, and with some magic key combination or macro, delete all of those.  </p>
  
  <p>Thanks.</p>