Cleanup

Author: alan-george-lk

include/livekit/room.h

@@ -330,7 +330,6 @@ class LIVEKIT_API Room {
   void removeOnDataFrameCallback(DataFrameCallbackId id);
 
 private:
-  friend class RoomCallbackTest;
   friend struct RoomTestAccess;
 
   mutable std::mutex lock_;