xmlenc: remove model.go which is not needed

xmlenc/model.go

@@ -1,26 +0,0 @@
-package xmlenc
-
-import (
-	"encoding/xml"
-)
-
-type EncryptedData struct {
-	XMLName          xml.Name `xml:"http://www.w3.org/2001/04/xmlenc#"`
-	EncryptionMethod EncryptionMethod
-	KeyInfo          KeyInfo
-	CipherDataValue  string `xml:"CipherData>CipherValue"`
-}
-
-type EncryptionMethod struct {
-	Algorithm string `xml:",attr"`
-}
-
-type KeyInfo struct {
-	XMLName  xml.Name  `xml:"http://www.w3.org/2000/09/xmldsig# KeyInfo"`
-	KeyName  string    `xml:"KeyName"`
-	X509Data *X509Data `xml:"X509Data,omitempty"`
-}
-
-type X509Data struct {
-	X509Certificate string `xml:"X509Certificate,omitempty"`
-}