[INET]: Unexport icmpmsg_statistics

This patch removes the unused EXPORT_SYMBOL(icmpmsg_statistics).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/icmp.c

@@ -1104,5 +1104,4 @@ void __init icmp_init(struct net_proto_family *ops)
 EXPORT_SYMBOL(icmp_err_convert);
 EXPORT_SYMBOL(icmp_send);
 EXPORT_SYMBOL(icmp_statistics);
-EXPORT_SYMBOL(icmpmsg_statistics);
 EXPORT_SYMBOL(xrlim_allow);