cifs: Remove duplicated include in cifsglob.h

./fs/cifs/cifsglob.h: linux/scatterlist.h is included more than once.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3459
Fixes: f7f291e1 ("cifs: fix oops during encryption")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/cifsglob.h

@@ -23,7 +23,6 @@
 #include "cifs_fs_sb.h"
 #include "cifsacl.h"
 #include <crypto/internal/hash.h>
-#include <linux/scatterlist.h>
 #include <uapi/linux/cifs/cifs_mount.h>
 #include "../smbfs_common/smb2pdu.h"
 #include "smb2pdu.h"