Revert "core/types: implement log.EncodeRLP"

This reverts commit fe8bf2df9e.

Signed-off-by: jsvisa <delweng@gmail.com>

core/types/log.go

@@ -17,13 +17,13 @@
 package types
 
 import (
-	"io"
-
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/ethereum/go-ethereum/rlp"
 )
 
+//go:generate go run ../../rlp/rlpgen -type Log -out gen_log_rlp.go
+//go:generate go run github.com/fjl/gencodec -type Log -field-override logMarshaling -out gen_log_json.go
+
 // Log represents a contract log event. These events are generated by the LOG opcode and
 // stored/indexed by the node.
 type Log struct {
@@ -53,23 +53,6 @@ type Log struct {
 	Removed bool `json:"removed" rlp:"-"`
 }
 
-// EncodeRLP implements rlp.Encoder, and flattens all content fields of a log
-// into an RLP stream.
-func (log *Log) EncodeRLP(_w io.Writer) error {
-	w := rlp.NewEncoderBuffer(_w)
-	outerList := w.List()
-	w.WriteBytes(log.Address[:])
-	topicList := w.List()
-	for _, topic := range log.Topics {
-		w.WriteBytes(topic[:])
-	}
-	w.ListEnd(topicList)
-	w.WriteBytes(log.Data)
-	w.ListEnd(outerList)
-	return w.Flush()
-}
-
-//go:generate go run github.com/fjl/gencodec -type Log -field-override logMarshaling -out gen_log_json.go
 type logMarshaling struct {
 	Data        hexutil.Bytes
 	BlockNumber hexutil.Uint64