Fixup test failures

src/NzbDrone.Core.Test/HealthCheck/Checks/DotnetVersionCheckFixture.cs

@@ -31,28 +31,27 @@ namespace NzbDrone.Core.Test.HealthCheck.Checks
         [TestCase("4.7")]
         [TestCase("4.7.1")]
         public void should_return_notice(string version)
+        {
+            if (PlatformInfo.IsDotNet)
             {
                 GivenOutput(version);
 
                 Subject.Check().ShouldBeNotice();
             }
-
-        public void should_return_warning(string version)
-        {
-            GivenOutput(version);
-
-            Subject.Check().ShouldBeWarning();
         }
 
         [TestCase("4.5")]
         [TestCase("4.5.2")]
         [TestCase("4.6.1")]
         public void should_return_error(string version)
+        {
+            if (PlatformInfo.IsDotNet)
             {
                 GivenOutput(version);
 
                 Subject.Check().ShouldBeError();
             }
+        }
 
         [Test]
         public void should_return_ok_for_net462_on_Win1511()