Remove (RNSScreen *) leftover

ios/RNSScreenStackHeaderConfig.mm

@@ -149,7 +149,7 @@ - (void)updateViewControllerIfNeeded
     [RNSScreenStackHeaderConfig updateViewController:self.screenView.controller withConfig:self animated:YES];
     // As the header might have change in `updateViewController` we need to ensure that header height
     // returned by the `onHeaderHeightChange` event is correct.
-    [(RNSScreen *)self.screenView.controller calculateAndNotifyHeaderHeightChangeIsModal:NO];
+    [self.screenView.controller calculateAndNotifyHeaderHeightChangeIsModal:NO];
   }
 }