Fixed Thread Sleep and messageSize

Thread was sleeping "messageSizeInBytes" milliseconds, this is unnecessary and the variable use to determine the amount of sleep time was wrong.

The RunTest() method was starting up with message size fixed to 1000 instead of using the value in messageSizeInBytes.

Mike.MQShootout/ShootoutTest.cs

@@ -1,4 +1,4 @@
-using System.Threading;
+using System.Threading;
 
 namespace Mike.MQShootout
 {
@@ -18,11 +18,9 @@ public void Run(int messageSizeInBytes, long numberOfMessages)
             var receivingMachine = new MessageReceivingMachine(messageReceiver, numberOfMessages);
             var sendingMachine = new MessageSendingMachine(messageSender);
 
-            Thread.Sleep(messageSizeInBytes);
-
-            sendingMachine.RunTest(1000, numberOfMessages);
+            sendingMachine.RunTest(messageSizeInBytes, numberOfMessages);
 
             receivingMachine.WaitForCompletion();            
         }
     }
-}
+}