Clean vendor dependencies

vendor/github.com/eclipse/paho.mqtt.golang/packets/puback.go

@@ -1,45 +0,0 @@
-package packets
-
-import (
-	"fmt"
-	"io"
-)
-
-//PubackPacket is an internal representation of the fields of the
-//Puback MQTT packet
-type PubackPacket struct {
-	FixedHeader
-	MessageID uint16
-}
-
-func (pa *PubackPacket) String() string {
-	str := fmt.Sprintf("%s", pa.FixedHeader)
-	str += " "
-	str += fmt.Sprintf("MessageID: %d", pa.MessageID)
-	return str
-}
-
-func (pa *PubackPacket) Write(w io.Writer) error {
-	var err error
-	pa.FixedHeader.RemainingLength = 2
-	packet := pa.FixedHeader.pack()
-	packet.Write(encodeUint16(pa.MessageID))
-	_, err = packet.WriteTo(w)
-
-	return err
-}
-
-//Unpack decodes the details of a ControlPacket after the fixed
-//header has been read
-func (pa *PubackPacket) Unpack(b io.Reader) error {
-	var err error
-	pa.MessageID, err = decodeUint16(b)
-
-	return err
-}
-
-//Details returns a Details struct containing the Qos and
-//MessageID of this ControlPacket
-func (pa *PubackPacket) Details() Details {
-	return Details{Qos: pa.Qos, MessageID: pa.MessageID}
-}