take unneeded debug print out of netstat

It had been so long I forgot how it worked. It shows active connections.
Here's an example which works because we're not getting packets through:
/ $ ping 10.0.2.1&
/ $ NO SIGNAL HANDLING
ping: dial icmp!10.0.2.1!1
sending 32 64 byte messages 1000 ms apart to icmp!10.0.2.1!1
netstat
icmp 0    Datagram     51246      1          10.0.2.1
/ $ ping 10.0.2.1&
/ $ NO SIGNAL HANDLING
ping: dial icmp!10.0.2.1!1
sending 32 64 byte messages 1000 ms apart to icmp!10.0.2.1!1
netstat
icmp 0    Datagram     51246      1          10.0.2.1
icmp 1    Datagram     36992      1          10.0.2.1
/ $

Note that we've got two active ICMP ports active.

Signed-off-by: Ronald G. Minnich <rminnich@google.com>