[2.1. test only] Remove checks for Microsoft.VisualStudio.Web.CodeGeneration.Design in templates (#7983)

- see aspnet/AspNetCore-Internal#1759

Author: dougbu

src/Templating/test/Templates.Test/MvcTemplateTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNetCore.Testing.xunit;
@@ -112,7 +112,7 @@ private void MvcTemplate_IndividualAuthImpl(string targetFrameworkOverride, bool
             {
                 Assert.Contains(".db", projectFileContents);
             }
-            Assert.Contains("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
+            Assert.DoesNotContain("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
 
             if (targetFrameworkOverride != null)
             {

src/Templating/test/Templates.Test/RazorPagesTemplateTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNetCore.Testing.xunit;
@@ -92,7 +92,7 @@ private void RazorPagesTemplate_IndividualAuthImpl(string targetFrameworkOverrid
             {
                 Assert.Contains(".db", projectFileContents);
             }
-            Assert.Contains("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
+            Assert.DoesNotContain("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
 
             if (targetFrameworkOverride != null)
             {