nasparallelbench fixes for single VM (#534)

* nasparallelbench wait for api

* Removing imports.

* Removing comment.

* Removed private helper method, using PollForHeartbeatAsync.

* Polling for 40 minutes.

---------

Co-authored-by: saibulusu <saibulusu@microsoft.com>

Author: saibulusu

src/VirtualClient/VirtualClient.Actions/NASParallelBench/NASParallelBenchExecutor.cs

@@ -7,15 +7,12 @@ namespace VirtualClient.Actions
     using System.Collections.Generic;
     using System.Net;
     using System.Net.Http;
-    using System.Runtime.InteropServices;
     using System.Threading;
     using System.Threading.Tasks;
     using Microsoft.Extensions.DependencyInjection;
-    using Microsoft.Extensions.Logging;
     using Newtonsoft.Json.Linq;
     using VirtualClient.Common;
     using VirtualClient.Common.Extensions;
-    using VirtualClient.Common.Platform;
     using VirtualClient.Common.Telemetry;
     using VirtualClient.Contracts;
 
@@ -146,6 +143,8 @@ private async Task BuildBinariesAsync(EventContext telemetryContext, Cancellatio
             IApiClientManager clientManager = this.Dependencies.GetService<IApiClientManager>();
             var apiClient = clientManager.GetOrCreateApiClient(IPAddress.Loopback.ToString(), IPAddress.Loopback);
 
+            await apiClient.PollForHeartbeatAsync(TimeSpan.FromMinutes(40), cancellationToken);
+
             HttpResponseMessage response = await apiClient.GetStateAsync(nameof(this.NpbBuildState), cancellationToken)
                .ConfigureAwait(false);