staging: exfat: remove unused including <linux/version.h>

Remove including <linux/version.h> that don't need it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905025623.63210-1-yuehaibing@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/exfat/exfat_super.c

@@ -3,7 +3,6 @@
  *  Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/time.h>