Remove uncessary files for rooster removal

  So I figured out you can have a <delete> tag in your xml files.
  Passing an ID removed the entire tag, so I can replace it with
whatever I want!
  For that reason, I've removed the uneeded files I created as a
workaround.

 * Delete files: audio.ini and none.ogg
 * Modified events.xml to include new <delete> tag

 * Fix grammar error in README.md