PM / QoS: Remove redundant check

Remove an "if" check, that repeats an equivalent one 6 lines above.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 1c1797d..5167d99 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -386,8 +386,7 @@
 		pm_qos_add_request(req, pm_qos_class, PM_QOS_DEFAULT_VALUE);
 		filp->private_data = req;
 
-		if (filp->private_data)
-			return 0;
+		return 0;
 	}
 	return -EPERM;
 }