message: Remove low value comments
  These comments could easily get out of date. Probably better to just
  search for the identifier if you want to know where it was used.
diff: @@ -26,8 +26,8 @@ namespace NAS2D
  class Tile;
  class TileMap;
  -class Warehouse; /**< Forward declaration for getAvailableWarehouse() function. */
  -class RobotCommand; /**< Forward declaration for getAvailableRobotCommand() function. */
  +class Warehouse;
  +class RobotCommand;
  class RobotPool;
  class Robot;
  struct StorableResources;
  