move broker codec

broker/broker.go

@@ -38,15 +38,6 @@ type Subscriber interface {
 	Unsubscribe() error
 }
 
-// Codec is used for encoding where the broker doesn't natively support
-// headers in the message type. In this case the entire message is
-// encoded as the payload
-type Codec interface {
-	Marshal(interface{}) ([]byte, error)
-	Unmarshal([]byte, interface{}) error
-	String() string
-}
-
 var (
 	DefaultBroker Broker = newHttpBroker()
 )