tcp: do not export tcp_gso_segment() and tcp_gro_receive()

tcp_gso_segment() and tcp_gro_receive() no longer need to be
exported. IPv4 and IPv6 offloads are statically linked.

Note that tcp_gro_complete() is still used by bnx2x, unfortunately.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 771a395..b92b817 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -138,7 +138,6 @@
 out:
 	return segs;
 }
-EXPORT_SYMBOL(tcp_gso_segment);
 
 struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 {
@@ -235,7 +234,6 @@
 
 	return pp;
 }
-EXPORT_SYMBOL(tcp_gro_receive);
 
 int tcp_gro_complete(struct sk_buff *skb)
 {