diff --git a/rpc/api/eth.go b/rpc/api/eth.go
index 784cd0f484..db0b4b024b 100644
--- a/rpc/api/eth.go
+++ b/rpc/api/eth.go
@@ -7,9 +7,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto/sha3"
 	"github.com/ethereum/go-ethereum/eth"
-	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/rpc/codec"
 	"github.com/ethereum/go-ethereum/rpc/shared"
 	"github.com/ethereum/go-ethereum/xeth"
@@ -557,13 +555,6 @@ func (self *ethApi) SubmitWork(req *shared.Request) (interface{}, error) {
 	return self.xeth.RemoteMining().SubmitWork(args.Nonce, common.HexToHash(args.Digest), common.HexToHash(args.Header)), nil
 }
 
-func rlpHash(x interface{}) (h common.Hash) {
-	hw := sha3.NewKeccak256()
-	rlp.Encode(hw, x)
-	hw.Sum(h[:0])
-	return h
-}
-
 func (self *ethApi) Resend(req *shared.Request) (interface{}, error) {
 	args := new(ResendArgs)
 	if err := self.codec.Decode(req.Params, &args); err != nil {