Remove test as it is impossible to unit test reliably

Author: javiercn

src/Servers/Kestrel/Kestrel/test/KestrelConfigurationBuilderTests.cs

@@ -6,7 +6,6 @@
 using System.IO;
 using System.Linq;
 using System.Security.Cryptography.X509Certificates;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.AspNetCore.Server.Kestrel.Https;
@@ -15,8 +14,6 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.FileProviders;
 using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Testing;
 using Xunit;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Tests
@@ -25,41 +22,15 @@ public class KestrelConfigurationBuilderTests
     {
         private KestrelServerOptions CreateServerOptions()
         {
-            var testSink = new TestSink();
             var serverOptions = new KestrelServerOptions();
             var env = new MockHostingEnvironment { ApplicationName = "TestApplication" };
             serverOptions.ApplicationServices = new ServiceCollection()
-                .AddLogging(l => l.AddProvider(new TestLoggerProvider(testSink)))
+                .AddLogging()
                 .AddSingleton<IHostEnvironment>(env)
-                .AddSingleton(testSink)
                 .BuildServiceProvider();
             return serverOptions;
         }
 
-        [Fact]
-        [SkipOnHelix("(none)", Queues = "Ubuntu.1604.Amd64.Open;Windows.10.Amd64.Open")]
-        [OSSkipCondition(OperatingSystems.Linux, SkipReason = "This check only applies to Mac OS as it is the one that checks the key for validity.")]
-        [OSSkipCondition(OperatingSystems.Windows, SkipReason = "This check only applies to Mac OS as it is the one that checks the key for validity.")]
-        public void DevCertWithInvalidPrivateKeyProducesCustomWarning()
-        {
-            var serverOptions = CreateServerOptions();
-            var sink = serverOptions.ApplicationServices.GetRequiredService<TestSink>();
-            var messages = new List<WriteContext>();
-            sink.MessageLogged += wc => messages.Add(wc);
-            serverOptions.Configure()
-                .LocalhostEndpoint(5001, endpointOptions => { });
-
-            Assert.Empty(serverOptions.ListenOptions);
-
-            serverOptions.ConfigurationLoader.Load();
-
-            Assert.Single(serverOptions.ListenOptions);
-            Assert.Equal(5001, serverOptions.ListenOptions[0].IPEndPoint.Port);
-
-            Assert.Equal(5, messages[^1].EventId);
-            Assert.Equal(LogLevel.Warning, messages[^1].LogLevel);
-        }
-
         [Fact]
         public void ConfigureNamedEndpoint_OnlyRunForMatchingConfig()
         {