staging: lustre: lov_pool: Fixed a return coding style warning.

Remove unusefull return at the end of void function.
WARNING: void function return statements are not generally useful.
Signed-off-by: Rakhi Sharma <rakhish1994@gmail.com>

Changes in v3:
  shortened the subject line and make the discription more clear.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/lov/lov_pool.c

@@ -247,7 +247,6 @@ static void pool_proc_stop(struct seq_file *s, void *v)
 		lov_pool_putref(iter->pool);
 		kfree(iter);
 	}
-	return;
 }
 
 static int pool_proc_show(struct seq_file *s, void *v)