Remove Console.WriteLine(HandleControlC)

Ctrl-C works. If a command is running, it stops it and returns. If one
is not running, it seems to "suspend" the readline until enter is
pressed again.

src/powershell-run/main.cs

@@ -322,7 +322,6 @@ namespace Microsoft.Samples.PowerShell.Host
         /// ConsoleCancelEventHandler.</param>
         private void HandleControlC(object sender, ConsoleCancelEventArgs e)
         {
-            Console.WriteLine("HandleControlC");
             try
             {
                 lock (this.instanceLock)