Remove obsolete projects from solution filter file (#20178)

* Remove obsolete projects from solution filter file

* Update project references and documentation for ControlCatalog.Desktop

Avalonia.Desktop.slnf

@@ -4,7 +4,7 @@
     "projects": [
       "packages\\Avalonia\\Avalonia.csproj",
       "samples\\AppWithoutLifetime\\AppWithoutLifetime.csproj",
-      "samples\\ControlCatalog.NetCore\\ControlCatalog.NetCore.csproj",
+      "samples\\ControlCatalog.Desktop\\ControlCatalog.Desktop.csproj",
       "samples\\ControlCatalog\\ControlCatalog.csproj",
       "samples\\GpuInterop\\GpuInterop.csproj",
       "samples\\IntegrationTestApp\\IntegrationTestApp.csproj",
@@ -46,7 +46,6 @@
       "src\\tools\\Avalonia.Generators\\Avalonia.Generators.csproj",
       "src\\tools\\DevAnalyzers\\DevAnalyzers.csproj",
       "src\\tools\\DevGenerators\\DevGenerators.csproj",
-      "src\\Windows\\Avalonia.Direct2D1\\Avalonia.Direct2D1.csproj",
       "src\\Windows\\Avalonia.Win32.Automation\\Avalonia.Win32.Automation.csproj",
       "src\\Windows\\Avalonia.Win32.Interoperability\\Avalonia.Win32.Interoperability.csproj",
       "src\\Windows\\Avalonia.Win32\\Avalonia.Win32.csproj",
@@ -56,8 +55,6 @@
       "tests\\Avalonia.Controls.UnitTests\\Avalonia.Controls.UnitTests.csproj",
       "tests\\Avalonia.DesignerSupport.TestApp\\Avalonia.DesignerSupport.TestApp.csproj",
       "tests\\Avalonia.DesignerSupport.Tests\\Avalonia.DesignerSupport.Tests.csproj",
-      "tests\\Avalonia.Direct2D1.RenderTests\\Avalonia.Direct2D1.RenderTests.csproj",
-      "tests\\Avalonia.Direct2D1.UnitTests\\Avalonia.Direct2D1.UnitTests.csproj",
       "tests\\Avalonia.Generators.Tests\\Avalonia.Generators.Tests.csproj",
       "tests\\Avalonia.IntegrationTests.Appium\\Avalonia.IntegrationTests.Appium.csproj",
       "tests\\Avalonia.LeakTests\\Avalonia.LeakTests.csproj",

docs/build.md

@@ -33,7 +33,7 @@ curl -sSL https://raw.githubusercontent.com/Samsung/Tizen.NET/main/workload/scri
 ##  Build and Run Avalonia
 
 ```bash
-cd samples\ControlCatalog.NetCore
+cd samples\ControlCatalog.Desktop
 dotnet restore
 dotnet run
 ```
@@ -47,7 +47,7 @@ If you want to open Avalonia in Visual Studio you have two options:
 
 Avalonia requires Visual Studio 2022 or newer. The free Visual Studio Community edition works fine.
 
-Build and run `ControlCatalog.NetCore` project to see the sample application.
+Build and run `ControlCatalog.Desktop` project to see the sample application.
 
 ### Visual Studio Troubleshooting