Clean up dead code.

src/document.rs

@@ -50,10 +50,6 @@ pub mod documents {
 
     const TIMEOUT: Duration = Duration::from_millis(500);
 
-    pub fn get_root_document() -> Message {
-        Message::new(MsgType::DocumentRequest)
-    }
-
     fn setup_document(listen_for: Vec<MsgType>) -> (Queue, Receiver<Message>) {
         let queue = Queue::new();
         let (tx, rx) = channel();