Do not run Avalonia.PlatformSupport.UnitTests tests

nukebuild/Build.cs

@@ -221,7 +221,6 @@ partial class Build : NukeBuild
             RunCoreTest("Avalonia.Markup.Xaml.UnitTests");
             RunCoreTest("Avalonia.Skia.UnitTests");
             RunCoreTest("Avalonia.ReactiveUI.UnitTests");
-            RunCoreTest("Avalonia.PlatformSupport.UnitTests");
         });
 
     Target RunRenderTests => _ => _