[Core,iOS,Droid,UWP,Tizen] Remove MediaElement (#12007)

* [Core,UWP,iOS,Android] Remove MediaElement

* [Tizen] Remove MediaElement

* [WPF] Remove reference to MediaElement

* [Tests] Remove MediaSourceTests

* [Core] Remove MediaSource

* [Tizen] Remove extra files related with MediaElement

* Update ExperimentalFlags.cs

* [Controls] Removing References to MedialElement strings

* [Controls] Remove  reference to MediaElement flag

Author: rmarinho

Stubs/Xamarin.Forms.Platform.cs

@@ -166,9 +166,6 @@ internal class _PageRenderer { }
 #endif
 	internal class _MasterDetailPageRenderer { }
 
-	[RenderWith (typeof(MediaElementRenderer))]
-	internal class _MediaElementRenderer { }
-
 	[RenderWith(typeof(RefreshViewRenderer))]
 	internal class _RefreshViewRenderer { }
 

Xamarin.Forms.ControlGallery.Android/FormsAppCompatActivity.cs

@@ -45,7 +45,7 @@ protected override void OnCreate(Bundle bundle)
 
 #if TEST_EXPERIMENTAL_RENDERERS
 #else
-			Forms.SetFlags("UseLegacyRenderers", "SwipeView_Experimental", "MediaElement_Experimental");
+			Forms.SetFlags("UseLegacyRenderers", "SwipeView_Experimental");
 #endif
 			Forms.Init(this, bundle);
 

Xamarin.Forms.ControlGallery.Tizen/ControlGallery.Tizen.cs

@@ -22,7 +22,7 @@ static void Main(string[] args)
 		{
 			var app = new MainApplication();
 			FormsMaps.Init("HERE", "write-your-API-key-here");
-			Forms.SetFlags("CollectionView_Experimental", "Shell_Experimental", "MediaElement_Experimental");
+			Forms.SetFlags("CollectionView_Experimental", "Shell_Experimental");
 			Forms.Init(app);
 			FormsMaterial.Init();
 			app.Run(args);

Xamarin.Forms.ControlGallery.WPF/MainWindow.xaml.cs

@@ -10,7 +10,7 @@ public partial class MainWindow : FormsApplicationPage
 		public MainWindow()
 		{
 			InitializeComponent();
-			Forms.SetFlags("CarouselView_Experimental", "MediaElement_Experimental", "RadioButton_Experimental");
+			Forms.SetFlags("CarouselView_Experimental", "RadioButton_Experimental");
 			Xamarin.Forms.Forms.Init();
 			FormsMaps.Init("");
 			LoadApplication(new Controls.App());

Xamarin.Forms.ControlGallery.WindowsUniversal/App.xaml.cs

@@ -71,7 +71,7 @@ protected override void OnLaunched(LaunchActivatedEventArgs e)
 
                 rootFrame.NavigationFailed += OnNavigationFailed;
 
-				Forms.SetFlags("Shell_UWP_Experimental", "SwipeView_Experimental", "MediaElement_Experimental");
+				Forms.SetFlags("Shell_UWP_Experimental", "SwipeView_Experimental");
 				Forms.Init (e);
 				//FormsMaps.Init (Controls.App.Config["UWPMapsAuthKey"]);
 

Xamarin.Forms.ControlGallery.iOS/AppDelegate.cs

@@ -151,7 +151,7 @@ public override bool FinishedLaunching(UIApplication uiApplication, NSDictionary
 			App.IOSVersion = int.Parse(versionPart[0]);
 
 			Xamarin.Calabash.Start();
-			Forms.SetFlags("SwipeView_Experimental", "MediaElement_Experimental");
+			Forms.SetFlags("SwipeView_Experimental");
 			Forms.Init();
 			FormsMaps.Init();
 			FormsMaterial.Init();

Xamarin.Forms.Controls/CoreGallery.cs

@@ -415,7 +415,6 @@ public override string ToString()
 				new GalleryPageFactory(() => new ListViewDemoPage(), "ListView Demo Gallery - Legacy"),
 				new GalleryPageFactory(() => new MapGallery(), "Map Gallery - Legacy"),
 				new GalleryPageFactory(() => new MapWithItemsSourceGallery(), "Map With ItemsSource Gallery - Legacy"),
-				new GalleryPageFactory(() => new MediaElementDemoPage(), "MediaElement"),
 				new GalleryPageFactory(() => new MapElementsGallery(), "Map Elements Gallery - Legacy"),
 				new GalleryPageFactory(() => new MinimumSizeGallery(), "MinimumSize Gallery - Legacy"),
 				new GalleryPageFactory(() => new MultiGallery(), "Multi Gallery - Legacy"),

Xamarin.Forms.Controls/GalleryPages/MediaElementDemoPage.cs

@@ -48,7 +48,6 @@ public void AllBindableElementsInCoreHaveDefaultBindablePropertyOrAreExcluded()
 				{ typeof(InputView), na },
 				{ typeof(ItemsLayout), na },
 				{ typeof(LinearItemsLayout), na },
-				{ typeof(MediaSource), na },
 				{ typeof(Menu), na },
 				{ typeof(MultiTrigger), na },
 				{ typeof(NavigableElement), na },