[staking] Remove legacy code (#1679)

api/proto/common.go

@@ -31,7 +31,6 @@ const (
 	Node
 	Client
 	DRand
-	Staking
 	// TODO: add more types
 )
 
@@ -105,10 +104,3 @@ func ConstructDRandMessage(payload []byte) []byte {
 	byteBuffer.Write(payload)
 	return byteBuffer.Bytes()
 }
-
-// ConstructStakingMessage creates a message with the payload and returns as byte array.
-func ConstructStakingMessage(payload []byte) []byte {
-	byteBuffer := bytes.NewBuffer([]byte{byte(Staking)})
-	byteBuffer.Write(payload)
-	return byteBuffer.Bytes()
-}

node/node_handler.go

@@ -140,13 +140,6 @@ func (node *Node) messageHandler(content []byte, sender libp2p_peer.ID) {
 				node.DRand.ProcessMessageValidator(msgPayload)
 			}
 		}
-	case proto.Staking:
-		utils.Logger().Debug().Msg("NET: Received staking message")
-		msgPayload, _ := proto.GetStakingMessagePayload(content)
-		// Only beacon leader processes staking txn
-		if node.Consensus != nil && node.Consensus.ShardID == 0 && node.Consensus.IsLeader() {
-			node.processStakingMessage(msgPayload)
-		}
 	case proto.Node:
 		actionType := proto_node.MessageType(msgType)
 		switch actionType {