Remove StorageRoot from vm.Account

vm/test/fake_app_state.go

@@ -36,11 +36,10 @@ func (fas *FakeAppState) CreateAccount(creator *Account) *Account {
 	account := fas.accounts[addr.String()]
 	if account == nil {
 		return &Account{
-			Address:     addr,
-			Balance:     0,
-			Code:        nil,
-			Nonce:       0,
-			StorageRoot: Zero256,
+			Address: addr,
+			Balance: 0,
+			Code:    nil,
+			Nonce:   0,
 		}
 	} else {
 		panic(Fmt("Invalid account addr: %X", addr))

vm/types.go

@@ -10,12 +10,11 @@ const (
 )
 
 type Account struct {
-	Address     Word256
-	Balance     int64
-	Code        []byte
-	Nonce       int64
-	StorageRoot Word256
-	Other       interface{} // For holding all other data.
+	Address Word256
+	Balance int64
+	Code    []byte
+	Nonce   int64
+	Other   interface{} // For holding all other data.
 
 	Permissions ptypes.AccountPermissions
 }
@@ -24,8 +23,8 @@ func (acc *Account) String() string {
 	if acc == nil {
 		return "nil-VMAccount"
 	}
-	return Fmt("VMAccount{%X B:%v C:%X N:%v S:%X}",
-		acc.Address, acc.Balance, acc.Code, acc.Nonce, acc.StorageRoot)
+	return Fmt("VMAccount{%X B:%v C:%X N:%v}",
+		acc.Address, acc.Balance, acc.Code, acc.Nonce)
 }
 
 // NOTE: This is serialized as an event from vm/vm.