Change inherit method for localmedia

src/localmedia.js

-import util from 'util';
 import hark from 'hark';
 import getScreenMedia from 'getscreenmedia';
 import WildEmitter from 'wildemitter';
@@ -323,7 +322,5 @@ class LocalMedia extends WildEmitter {
   }
 }
 
-util.inherits(LocalMedia, WildEmitter);
-
 
 export default LocalMedia;