interfaces: remove netgraph now that plugins habe stubs, closes #1188

src/etc/inc/interfaces.inc

@@ -210,7 +210,7 @@ function interface_vlan_configure(&$vlan)
     } else {
         $tmpvlanif = legacy_interface_create('vlan');
         legacy_interface_rename($tmpvlanif, $vlanif);
-        legacy_netgraph_rename($tmpvlanif, $vlanif);
+        mwexecf('/usr/sbin/ngctl name %s: %s', array($tmpvlanif, $vlanif));
     }
 
     legacy_vlan_tag($vlanif, $if, $vlan['tag']);

src/etc/inc/interfaces.lib.inc

@@ -282,21 +282,6 @@ function legacy_interface_details($intf)
     return legacy_interfaces_details($intf)[$intf];
 }
 
-function legacy_netgraph_attach($ifs)
-{
-    /* XXX compat stub for plugins to be removed in 17.1 */
-}
-
-function legacy_netgraph_detach($ifs)
-{
-    /* XXX compat stub for plugins to be removed in 17.1 */
-}
-
-function legacy_netgraph_rename($tmpifs, $ifs)
-{
-    mwexecf('/usr/sbin/ngctl name %s: %s', array($tmpifs, $ifs));
-}
-
 /**
  * configure interface hardware settings
  * @param string $ifs interface name