Remove comment from top of editorclass

There's no need for this comment; it's quite obvious that editorclass is
a class about the editor and will contain editor variables.

desktop_version/src/CustomLevels.h

@@ -115,7 +115,6 @@ struct GhostInfo {
 };
 
 class editorclass{
-  //Special class to handle ALL editor variables locally
   public:
   editorclass(void);