remove unwanted null check (dotnet#29784)

Author: bhavanesh2001

src/Controls/src/Core/Handlers/Items2/CarouselViewHandler2.iOS.cs

@@ -39,17 +39,10 @@ protected override CarouselViewController2 CreateController(CarouselView newElem
 
 		protected override UICollectionViewLayout SelectLayout()
 		{
-			bool isHorizontal = VirtualView.ItemsLayout.Orientation == ItemsLayoutOrientation.Horizontal;
-			var peekInsets = VirtualView.PeekAreaInsets;
-
 			var weakItemsView = new WeakReference<CarouselView>(ItemsView);
 			var weakController = new WeakReference<CarouselViewController2>((CarouselViewController2)Controller);
 
-			return LayoutFactory2.CreateCarouselLayout(
-				isHorizontal,
-				peekInsets,
-				weakItemsView,
-				weakController);
+			return LayoutFactory2.CreateCarouselLayout(weakItemsView,weakController);
 		}
 
 		protected override void ScrollToRequested(object sender, ScrollToRequestEventArgs args)

src/Controls/src/Core/Handlers/Items2/iOS/LayoutFactory2.cs

@@ -265,8 +265,6 @@ public static UICollectionViewLayout CreateHorizontalGrid(GridItemsLayout gridIt
 
 #nullable disable
 	public static UICollectionViewLayout CreateCarouselLayout(
-		bool isHorizontal,
-		Thickness peekAreaInsets,
 		WeakReference<CarouselView> weakItemsView,
 		WeakReference<CarouselViewController2> weakController)
 	{
@@ -279,11 +277,14 @@ public static UICollectionViewLayout CreateCarouselLayout(
 
 		var layout = new UICollectionViewCompositionalLayout((sectionIndex, environment) =>
 		{
-			if (!weakItemsView.TryGetTarget(out var itemsView) || !weakController.TryGetTarget(out var controller))
+			if (!weakItemsView.TryGetTarget(out var itemsView))
 			{
 				return null;
 			}
 
+			bool isHorizontal = itemsView.ItemsLayout.Orientation == ItemsLayoutOrientation.Horizontal;
+			var peekAreaInsets = itemsView.PeekAreaInsets;
+
 			double sectionMargin = 0.0;
 
 			if (!isHorizontal)