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/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 0a5a70d..d3e537e 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -207,8 +207,7 @@
 				      SKB_GSO_UDP_TUNNEL_CSUM |
 				      SKB_GSO_TUNNEL_REMCSUM |
 				      SKB_GSO_IPIP |
-				      SKB_GSO_GRE | SKB_GSO_GRE_CSUM |
-				      SKB_GSO_MPLS) ||
+				      SKB_GSO_GRE | SKB_GSO_GRE_CSUM) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;