diff --git a/message.go b/message.go
index 8bb8bd1..3eaaa6c 100644
--- a/message.go
+++ b/message.go
@@ -50,15 +50,3 @@ func (this *MessageData) UnmarshalBinary(buffer []byte) error {
 	}
 	return nil
 }
-
-// Protocol maps methods to functions that create messages. The messages must be
-// passed by reference, and the functions must return a new object every time.
-type Protocol map[uint16] func() Message
-
-// Add adds messages to the protocol. Messages with conflicting methods will
-// be replaced.
-func (this Protocol) Add(messages ...func() Message) {
-	for _, message := range messages {
-		this[message().Method()] = message
-	}
-}