remove more

src/Compatibility/ControlGallery/src/Issues.Shared/TestPages/TestPages.cs

@@ -603,7 +603,6 @@ namespace Microsoft.Maui.Controls.Compatibility.ControlGallery
 
 		protected TestShell() : base()
 		{
-			Device.SetFlags(new List<string> { ExperimentalFlags.ShellUWPExperimental });
 			Routing.Clear();
 #if APP
 			Init();

src/Controls/src/Core/ExperimentalFlags.cs

@@ -1,50 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-using System.Runtime.CompilerServices;
-using System.Text;
-
-namespace Microsoft.Maui.Controls
-{
-	static class ExperimentalFlags
-	{
-		internal const string ShellUWPExperimental = "Shell_UWP_Experimental";
-
-		[EditorBrowsable(EditorBrowsableState.Never)]
-		public static void VerifyFlagEnabled(
-			string coreComponentName,
-			string flagName,
-			string constructorHint = null,
-			[CallerMemberName] string memberName = "")
-		{
-			if (DesignMode.IsDesignModeEnabled)
-			{
-				return;
-			}
-
-			if (Device.Flags == null || !Device.Flags.Contains(flagName))
-			{
-				if (!String.IsNullOrEmpty(memberName))
-				{
-					if (!String.IsNullOrEmpty(constructorHint))
-					{
-						constructorHint = constructorHint + " ";
-					}
-
-					var call = $"('{constructorHint}{memberName}')";
-
-					var errorMessage = $"The class, property, or method you are attempting to use {call} is part of "
-										+ $"{coreComponentName}; to use it, you must opt-in by calling "
-										+ $"Forms.SetFlags(\"{flagName}\") before calling Forms.Init().";
-					throw new InvalidOperationException(errorMessage);
-				}
-
-				var genericErrorMessage =
-					$"To use {coreComponentName} or associated classes, you must opt-in by calling "
-					+ $"Forms.SetFlags(\"{flagName}\") before calling Forms.Init().";
-				throw new InvalidOperationException(genericErrorMessage);
-			}
-		}
-	}
-}

src/Controls/src/Core/Handlers/Shell/Windows/ShellFooterView.cs

@@ -12,8 +12,6 @@ namespace Microsoft.Maui.Controls.Platform
 
 		public ShellFooterView(Shell element)
 		{
-			Shell.VerifyShellUWPFlagEnabled(nameof(ShellFooterView));
-
 			SetElement(element);
 			SizeChanged += OnShellFooterViewSizeChanged;
 			HorizontalContentAlignment = HorizontalAlignment.Stretch;

src/Controls/src/Core/Handlers/Shell/Windows/ShellHeaderView.cs

@@ -11,8 +11,6 @@ namespace Microsoft.Maui.Controls.Platform
 
 		public ShellHeaderView(Shell element)
 		{
-			Shell.VerifyShellUWPFlagEnabled(nameof(ShellHeaderView));
-
 			SetElement(element);
 			SizeChanged += OnShellHeaderViewSizeChanged;
 			HorizontalContentAlignment = HorizontalAlignment.Stretch;

src/Controls/src/Core/Handlers/Shell/Windows/ShellItemView.cs

@@ -41,7 +41,6 @@ namespace Microsoft.Maui.Controls.Platform
 
 		public ShellItemView(ShellView shellContext)
 		{
-			Microsoft.Maui.Controls.Shell.VerifyShellUWPFlagEnabled(nameof(ShellItemView));
 			_ = shellContext ?? throw new ArgumentNullException(nameof(shellContext));
 
 			ShellContext = shellContext;

src/Controls/src/Core/Handlers/Shell/Windows/ShellSectionView.cs

@@ -30,7 +30,6 @@ namespace Microsoft.Maui.Controls.Platform
 		ObservableCollection<ShellContent> ShellContentMenuItems;
 		public ShellSectionView()
 		{
-			Microsoft.Maui.Controls.Shell.VerifyShellUWPFlagEnabled(nameof(ShellSectionView));
 			MenuItemTemplate = (Microsoft.UI.Xaml.DataTemplate)Microsoft.UI.Xaml.Application.Current.Resources["ShellSectionMenuItemTemplate"];
 			IsBackButtonVisible = Microsoft.UI.Xaml.Controls.NavigationViewBackButtonVisible.Collapsed;
 			IsSettingsVisible = false;

src/Controls/src/Core/Handlers/Shell/Windows/ShellToolbarItemView.cs

@@ -24,7 +24,6 @@ namespace Microsoft.Maui.Controls.Platform
 
 		public ShellToolbarItemView()
 		{
-			Microsoft.Maui.Controls.Shell.VerifyShellUWPFlagEnabled(nameof(ShellToolbarItemView));
 			Click += OnClick;
 		}
 

src/Controls/src/Core/Handlers/Shell/Windows/ShellView.cs

@@ -42,7 +42,6 @@ namespace Microsoft.Maui.Controls.Platform
 
 		public ShellView()
 		{
-			Microsoft.Maui.Controls.Shell.VerifyShellUWPFlagEnabled(nameof(ShellView));
 			_flyoutBackdrop = Brush.Default;
 			IsSettingsVisible = false;
 			PaneDisplayMode = Microsoft.UI.Xaml.Controls.NavigationViewPaneDisplayMode.LeftMinimal;

src/Controls/src/Core/Shell/Shell.cs

@@ -1327,15 +1327,6 @@ namespace Microsoft.Maui.Controls
 		}
 		#endregion
 
-
-		[EditorBrowsable(EditorBrowsableState.Never)]
-		public static void VerifyShellUWPFlagEnabled(
-			string constructorHint = null,
-			[CallerMemberName] string memberName = "")
-		{
-			// ExperimentalFlags.VerifyFlagEnabled(nameof(Shell), ExperimentalFlags.ShellUWPExperimental);
-		}
-
 		class NavigationImpl : NavigationProxy
 		{
 			readonly Shell _shell;