Revert "[Xharness] Bump to the new nuget in the xharness main branch. (#10761)" (#10898)

This reverts commit 7db547617a.

tests/xharness/AppRunner.cs

@@ -367,7 +367,7 @@ namespace Xharness {
 				MainLog.WriteLine ("Starting test run");
 
 				await testReporter.CollectSimulatorResult (
-					await processManager.ExecuteCommandAsync (args, MainLog, testReporterTimeout, cancellationToken: testReporter.CancellationToken));
+					processManager.ExecuteCommandAsync (args, MainLog, testReporterTimeout, cancellationToken: testReporter.CancellationToken));
 
 				// cleanup after us
 				if (EnsureCleanSimulatorState)
@@ -412,7 +412,7 @@ namespace Xharness {
 						testReporterTimeout,
 						cancellationToken: testReporter.CancellationToken);
 
-					await testReporter.CollectDeviceResult (await runTestTask);
+					await testReporter.CollectDeviceResult (runTestTask);
 				} finally {
 					deviceLogCapturer.StopCapture ();
 					deviceSystemLog.Dispose ();

tests/xharness/xharness.csproj

@@ -71,7 +71,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.DotNet.XHarness.iOS.Shared">
-      <Version>1.0.0-prerelease.21154.2</Version>
+      <Version>1.0.0-prerelease.20621.4</Version>
     </PackageReference>
     <PackageReference Include="Mono.Cecil">
       <Version>0.11.2</Version>
@@ -198,4 +198,4 @@
     <EmbeddedResource Include="TestImporter\Templates\Managed\Resources\**\*" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-</Project>
+</Project>