Make Avalonia.Android compile again.

No idea if it actually works because android doesn't seem to work at all
at the moment.

src/Android/Avalonia.Android/AndroidPlatform.cs

@@ -1,4 +1,3 @@
-using Avalonia.Android.CanvasRendering;
 using Avalonia.Android.Platform;
 using Avalonia.Android.Platform.Input;
 using Avalonia.Android.Platform.Specific;
@@ -35,7 +34,6 @@ namespace Avalonia.Android
                 .Bind<IPlatformSettings>().ToConstant(this)
                 .Bind<IPlatformThreadingInterface>().ToConstant(new AndroidThreadingInterface())
                 .Bind<ISystemDialogImpl>().ToTransient<SystemDialogImpl>()
-                .Bind<ITopLevelRenderer>().ToTransient<AndroidTopLevelRenderer>()
                 .Bind<IWindowingPlatform>().ToConstant(this);
 
             SkiaPlatform.Initialize();

src/Android/Avalonia.Android/Avalonia.Android.csproj

@@ -74,7 +74,6 @@
     <Compile Include="Platform\Specific\AvaloniaActivity.cs" />
     <Compile Include="Platform\Specific\Helpers\AndroidTouchEventsHelper.cs" />
     <Compile Include="Platform\Specific\Helpers\AndroidKeyboardEventsHelper.cs" />
-    <Compile Include="Platform\AndroidTopLevelRenderer.cs" />
     <Compile Include="Resources\Resource.Designer.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RuntimeInfo.cs" />

src/Android/Avalonia.Android/Platform/AndroidTopLevelRenderer.cs

@@ -1,59 +0,0 @@
-using Avalonia.Controls;
-using Avalonia.Controls.Platform;
-using Avalonia.Platform;
-using Avalonia.Rendering;
-using Avalonia.Threading;
-using System;
-using System.Collections.Generic;
-
-namespace Avalonia.Android.CanvasRendering
-{
-    internal class AndroidTopLevelRenderer : ITopLevelRenderer
-    {
-        public void Attach(TopLevel topLevel)
-        {
-            var resources = new List<IDisposable>();
-            var initialClientSize = topLevel.PlatformImpl.ClientSize;
-
-
-            var queueManager = ((IRenderRoot)topLevel).RenderQueueManager;
-
-            if (queueManager == null)
-                return;
-
-
-            var viewport = PlatformManager.CreateRenderTarget(topLevel.PlatformImpl);
-            resources.Add(viewport);
-            //resources.Add(queueManager.RenderNeeded.Subscribe(_
-            //    =>
-            //    Dispatcher.UIThread.InvokeAsync(() => topLevel.PlatformImpl.Invalidate(new Rect(topLevel.ClientSize)))));
-            Action pendingInvalidation = null;
-            resources.Add(queueManager.RenderNeeded.Subscribe(_ =>
-            {
-                if (pendingInvalidation == null)
-                {
-                    pendingInvalidation = () =>
-                    {
-                        topLevel.PlatformImpl.Invalidate(new Rect(topLevel.ClientSize));
-                        pendingInvalidation = null;
-                    };
-                    Dispatcher.UIThread.InvokeAsync(pendingInvalidation);
-                }
-            }
-            ));
-
-            topLevel.PlatformImpl.Paint = rect =>
-            {
-                viewport.Render(topLevel);
-                queueManager.RenderFinished();
-            };
-
-            topLevel.Closed += delegate
-            {
-                foreach (var disposable in resources)
-                    disposable.Dispose();
-                resources.Clear();
-            };
-        }
-    }
-}