Revert "Switch to new vendor directory layout"

This reverts commit d5742209d3.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor/github.com/vishvananda/netlink/xfrm_state.go

@@ -1,53 +0,0 @@
-package netlink
-
-import (
-	"net"
-)
-
-// XfrmStateAlgo represents the algorithm to use for the ipsec encryption.
-type XfrmStateAlgo struct {
-	Name        string
-	Key         []byte
-	TruncateLen int // Auth only
-}
-
-// EncapType is an enum representing an ipsec template direction.
-type EncapType uint8
-
-const (
-	XFRM_ENCAP_ESPINUDP_NONIKE EncapType = iota + 1
-	XFRM_ENCAP_ESPINUDP
-)
-
-func (e EncapType) String() string {
-	switch e {
-	case XFRM_ENCAP_ESPINUDP_NONIKE:
-		return "espinudp-nonike"
-	case XFRM_ENCAP_ESPINUDP:
-		return "espinudp"
-	}
-	return "unknown"
-}
-
-// XfrmEncap represents the encapsulation to use for the ipsec encryption.
-type XfrmStateEncap struct {
-	Type            EncapType
-	SrcPort         int
-	DstPort         int
-	OriginalAddress net.IP
-}
-
-// XfrmState represents the state of an ipsec policy. It optionally
-// contains an XfrmStateAlgo for encryption and one for authentication.
-type XfrmState struct {
-	Dst          net.IP
-	Src          net.IP
-	Proto        Proto
-	Mode         Mode
-	Spi          int
-	Reqid        int
-	ReplayWindow int
-	Auth         *XfrmStateAlgo
-	Crypt        *XfrmStateAlgo
-	Encap        *XfrmStateEncap
-}