Mitigate missing dev cert in a way that doesn't invalidate the test

Author: amcasey

src/DefaultBuilder/test/Microsoft.AspNetCore.TrimmingTests/UseHttpsDoesDependOnX509Test.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Security.Cryptography.X509Certificates;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -8,13 +9,18 @@
 {
     serverOptions.ListenLocalhost(5000, listenOptions =>
     {
-#pragma warning disable SYSLIB0026 // The constructor obsolete but we're not actually going to use the cert
-        listenOptions.UseHttps(new X509Certificate2());
-#pragma warning restore SYSLIB0026
+        listenOptions.UseHttps();
     });
 });
 
-var app = builder.Build();
+try
+{
+    _ = builder.Build();
+}
+catch (InvalidOperationException)
+{
+    // Expected if there's no dev cert installed
+}
 
 if (!X509Utilities.HasCertificateType) {
     return 1;