Merge pull request #44013 from sharwell/rm-doevents

Remove unnecessary DoEvents call

Author: sharwell

src/Workspaces/CoreTestUtilities/AsynchronousOperationListenerExtensions.cs

@@ -5,15 +5,14 @@
 #nullable enable
 
 using System.Threading.Tasks;
-using System.Windows.Threading;
 using Microsoft.CodeAnalysis.Shared.TestHooks;
 
 namespace Roslyn.Test.Utilities
 {
     public static class AsynchronousOperationListenerExtensions
     {
         internal static Task WaitAllDispatcherOperationAndTasksAsync(this IAsynchronousOperationListenerProvider provider, params string[] featureNames)
-            => ((AsynchronousOperationListenerProvider)provider).WaitAllAsync(featureNames, eventProcessingAction: () => Dispatcher.CurrentDispatcher.DoEvents());
+            => ((AsynchronousOperationListenerProvider)provider).WaitAllAsync(featureNames);
 
         internal static IAsynchronousOperationWaiter GetWaiter(this IAsynchronousOperationListenerProvider provider, string featureName)
             => (IAsynchronousOperationWaiter)provider.GetListener(featureName);