Refactor Reset_PriorOSVersions_NotSupported

[BrennanConroy]

Microsoft.AspNetCore.Server.HttpSys.FunctionalTests.Http2Tests.Reset_PriorOSVersions_NotSupported

The machines we test on may have been updated, test needs to be refactored.

Logs

[0.001s] [TestLifetime] [Information] Starting test Reset_PriorOSVersions_NotSupported at 2021-07-01T17:00:32
[0.033s] [Microsoft.AspNetCore.Server.HttpSys.FunctionalTests.Http2Tests] [Error] Test threw an exception.
System.Net.Http.HttpRequestException: Response status code does not indicate success: 500 (Internal Server Error).
   at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() in System.Net.Http.dll:token 0x6000376+0x39
   at System.Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken) in System.Net.Http.dll:token 0x6000222+0xf8
   at Microsoft.AspNetCore.Server.HttpSys.FunctionalTests.Http2Tests.Reset_PriorOSVersions_NotSupported() in /_/src/Servers/HttpSys/test/FunctionalTests/Http2Tests.cs:line 644
   at Xunit.Sdk.TestInvoker`1.<>c__DisplayClass48_1.<<InvokeTestMethodAsync>b__1>d.MoveNext() in C:\Dev\xunit\xunit\src\xunit.execution\Sdk\Frameworks\Runners\TestInvoker.cs:line 273
--- End of stack trace from previous location ---
   at Xunit.Sdk.ExecutionTimer.AggregateAsync(Func`1 asyncAction) in C:\Dev\xunit\xunit\src\xunit.execution\Sdk\Frameworks\ExecutionTimer.cs:line 54
   at Xunit.Sdk.ExceptionAggregator.RunAsync(Func`1 code) in C:\Dev\xunit\xunit\src\xunit.core\Sdk\ExceptionAggregator.cs:line 96
[0.034s] [TestLifetime] [Information] Finished test Reset_PriorOSVersions_NotSupported in 0.0330937s

https://dev.azure.com/dnceng/public/_build/results?buildId=1214747&view=ms.vss-test-web.build-test-results-tab&runId=36288708&resultId=106211&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

[Tratcher]

Logs and build links please

[mkArtakMSFT]

Here are the failure logs (from another PR): https://helixre8s23ayyeko0k025g8.blob.core.windows.net/dotnet-aspnetcore-refs-pull-33998-merge-d47ef1bb65714191bb/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests--net6.0/console.124e3acc.log?sv=2019-07-07&se=2021-07-21T17%3A10%3A07Z&sr=c&sp=rl&sig=pgvzAZ2zx%2FYw2n2LJy%2FcPsjbHIfCpnFb6F9EMd23U0s%3D

Thanks for contacting us.

We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. We would like to keep this around to collect more feedback, which can help us with prioritizing this work. We will re-evaluate this issue, during our next planning meeting(s).
If we later determine, that the issue has no community involvement, or it's very rare and low-impact issue, we will close it - so that the team can focus on more important and high impact issues.
To learn more about what to expect next and how this issue will be handled you can read more about our triage process here.

[Tratcher]

Fixed by agent updates on 7/28 and passing 100% since, this can be unquarantined.