message: Deleted redundant properties
diff: @interface NVTabBarItemView : UIView
  @property UITabBarItem *tab;
  -@property (nonatomic, assign) NSString *title;
  -@property (nonatomic, assign) UIImage *image;
  -@property (nonatomic, assign) UITabBarSystemItem systemItem;
  @property (nonatomic, strong) UINavigationController *navigationController;
  @property (nonatomic, copy) RCTBubblingEventBlock onPress;
  