Suppress last warnings.

client/src/room.rs

@@ -321,6 +321,7 @@ impl RoomMap {
     Ok(room)
   }
 
+  #[allow(dead_code)]
   /// Records that we are now trying to leave the given room.
   /// If the room is not found, or if its membership status is not `Member`,
   /// returns an error.

client/src/user.rs

@@ -77,6 +77,7 @@ impl UserMap {
     Ok(())
   }
 
+  #[cfg(test)]
   /// Returns the list of (user name, user data) representing all known users.
   pub fn get_list(&self) -> Vec<(String, User)> {
     let mut users = Vec::new();