system: fastforwarding no longer exists

PR: https://github.com/opnsense/src/issues/27

src/etc/config.xml.sample

@@ -108,11 +108,6 @@
       <tunable>net.inet.tcp.sendspace</tunable>
       <value>default</value>
     </item>
-    <item>
-      <descr><![CDATA[IP Fastforwarding]]></descr>
-      <tunable>net.inet.ip.fastforwarding</tunable>
-      <value>default</value>
-    </item>
     <item>
       <descr><![CDATA[Do not delay ACK to try and piggyback it onto a data packet]]></descr>
       <tunable>net.inet.tcp.delayed_ack</tunable>

src/etc/inc/plugins.inc.d/ipsec.inc

@@ -766,9 +766,6 @@ function ipsec_configure_do($verbose = false, $interface = '')
             echo 'Configuring IPsec VPN...';
         }
 
-        /* fastforwarding is not compatible with ipsec tunnels */
-        set_single_sysctl("net.inet.ip.fastforwarding", "0");
-
         /* resolve all local, peer addresses and setup pings */
         $rgmap = array();
         $filterdns_list = array();

src/etc/inc/system.inc

@@ -96,7 +96,6 @@ function get_default_sysctl_value($id)
         "net.inet.tcp.syncookies" => "1",
         "net.inet.tcp.recvspace" => "65228",
         "net.inet.tcp.sendspace" => "65228",
-        "net.inet.ip.fastforwarding" => "0",
         'net.inet.ip.sourceroute' => '0',
         'net.inet.ip.accept_sourceroute' => '0',
         'net.inet.icmp.drop_redirect' => '0',