net: Remove MPLS GSO feature.

Device can export MPLS GSO support in dev->mpls_features same way
it export vlan features in dev->vlan_features. So it is safe to
remove NETIF_F_GSO_MPLS redundant flag.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 637ba2e..b6aa8ed 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -46,8 +46,7 @@
 				      SKB_GSO_GRE |
 				      SKB_GSO_GRE_CSUM |
 				      SKB_GSO_IPIP |
-				      SKB_GSO_SIT |
-				      SKB_GSO_MPLS) ||
+				      SKB_GSO_SIT) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;