Disable tests that rely on vs-solutionpersistence fix

Author: Jason Zhai

test/dotnet-sln.Tests/GivenDotnetSlnAdd.cs

@@ -244,10 +244,11 @@ public void WhenNestedProjectIsAddedSolutionFoldersAreCreated(string solutionCom
         }
 
         [Theory]
-        [InlineData("sln", true, ".sln")]
-        [InlineData("sln", false, ".sln")]
-        [InlineData("solution", true, ".sln")]
-        [InlineData("solution", false, ".sln")]
+        // needs https://github.com/microsoft/vs-solutionpersistence/pull/101
+        // [InlineData("sln", true, ".sln")]
+        // [InlineData("sln", false, ".sln")]
+        // [InlineData("solution", true, ".sln")]
+        // [InlineData("solution", false, ".sln")]
         [InlineData("sln", true, ".slnx")]
         [InlineData("solution", false, ".slnx")]
         public void WhenNestedProjectIsAddedSolutionFoldersAreCreatedBuild(string solutionCommand, bool fooFirst, string solutionExtension)