remove useless part of code

src/core/topology.c

@@ -2,7 +2,7 @@
  *
  * Copyright (C) 2009-2016  Université de Bordeaux
  * Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016 CNRS
- * Copyright (C) 2011  INRIA
+ * Copyright (C) 2011, 2016  INRIA
  *
  * StarPU is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -854,15 +854,11 @@ _starpu_init_mp_config (struct _starpu_machine_config *config,
 	if (reqmicdevices == -1 && user_conf)
 		reqmicdevices = user_conf->nmic;
 	if (reqmicdevices == -1)
-		reqmicdevices = nhwmicdevices;
-
-	if (reqmicdevices == -1)
-	{
 		/* Nothing was specified, so let's use the number of
 		 * detected mic devices. ! */
 		reqmicdevices = nhwmicdevices;
-	}
-	else
+
+	if (reqmicdevices != -1)
 	{
 		if ((unsigned) reqmicdevices > nhwmicdevices)
 		{