net: x25: remove null checks on arrays calling_ae and called_ae

dtefacs.calling_ae and called_ae are both 20 element __u8 arrays and
cannot be null and hence are redundant checks. Remove these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index a750f33..f83b74d 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1500,12 +1500,8 @@
 			goto out_dtefac_release;
 		if (dtefacs.calling_len > X25_MAX_AE_LEN)
 			goto out_dtefac_release;
-		if (dtefacs.calling_ae == NULL)
-			goto out_dtefac_release;
 		if (dtefacs.called_len > X25_MAX_AE_LEN)
 			goto out_dtefac_release;
-		if (dtefacs.called_ae == NULL)
-			goto out_dtefac_release;
 		x25->dte_facilities = dtefacs;
 		rc = 0;
 out_dtefac_release: