diff --git a/core/state/state_object.go b/core/state/state_object.go
index 0af0fbd5ab..fa67c94e4c 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -87,10 +87,6 @@ type StateObject struct {
 	dirty   bool
 }
 
-func (self *StateObject) Reset() {
-	self.storage = make(Storage)
-}
-
 func NewStateObject(address common.Address, db common.Database) *StateObject {
 	object := &StateObject{db: db, address: address, balance: new(big.Int), gasPool: new(big.Int), dirty: true}
 	object.trie = trie.NewSecure((common.Hash{}).Bytes(), db)
diff --git a/core/state/statedb.go b/core/state/statedb.go
index 577f7162eb..468b2dfe48 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -315,18 +315,6 @@ func (s *StateDB) Trie() *trie.SecureTrie {
 	return s.trie
 }
 
-// Resets the trie and all siblings
-func (s *StateDB) Reset() {
-	s.trie.Reset()
-
-	// Reset all nested states
-	for _, stateObject := range s.stateObjects {
-		stateObject.Reset()
-	}
-
-	s.Empty()
-}
-
 // Syncs the trie and all siblings
 func (s *StateDB) Sync() {
 	// Sync all nested states
diff --git a/core/types/transaction.go b/core/types/transaction.go
index 28a7e02b31..8260d74230 100644
--- a/core/types/transaction.go
+++ b/core/types/transaction.go
@@ -33,10 +33,6 @@ import (
 
 var ErrInvalidSig = errors.New("invalid v, r, s values")
 
-func IsContractAddr(addr []byte) bool {
-	return len(addr) == 0
-}
-
 type Transaction struct {
 	data txdata
 	// caches