fix ambiguous import for go-ethereum (#106)

go.mod

@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/btcsuite/btcd v0.21.0-beta // indirect
 	github.com/cenkalti/backoff v2.2.1+incompatible
-	github.com/ethereum/go-ethereum v1.10.21
+	github.com/ethereum/go-ethereum v1.10.4
 	github.com/golang-jwt/jwt v3.2.2+incompatible
 	github.com/golang/mock v1.4.4
 	github.com/golang/protobuf v1.5.2
@@ -21,10 +21,8 @@ require (
 )
 
 require (
-	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.8.0 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
 	github.com/dustinxie/gmsm v1.4.0 // indirect
 	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/google/uuid v1.2.0 // indirect
@@ -38,4 +36,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-replace github.com/ethereum/go-ethereum => github.com/iotexproject/go-ethereum v1.7.4-0.20220812081026-bdd6206c4f1f
+replace github.com/ethereum/go-ethereum => github.com/iotexproject/go-ethereum v0.4.0