Abstract TxProcessor from StateDB

- Abstract TxProcessor from StateDB
- Upgrade to last version of go-merkletree for the key-value DB usage

db/statedb/utils.go

@@ -3,14 +3,12 @@ package statedb
 import (
 	"bytes"
 	"fmt"
-	"math/big"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/tracerr"
 	"github.com/iden3/go-iden3-crypto/babyjub"
-	"github.com/iden3/go-merkletree"
 )
 
 func concatEthAddrTokenID(addr ethCommon.Address, tokenID common.TokenID) []byte {
@@ -136,44 +134,3 @@ func (s *StateDB) GetTokenIDsFromIdxs(idxs []common.Idx) (map[common.TokenID]com
 	}
 	return m, nil
 }
-
-func siblingsToZKInputFormat(s []*merkletree.Hash) []*big.Int {
-	b := make([]*big.Int, len(s))
-	for i := 0; i < len(s); i++ {
-		b[i] = s[i].BigInt()
-	}
-	return b
-}
-
-// BJJCompressedTo256BigInts returns a [256]*big.Int array with the bit
-// representation of the babyjub.PublicKeyComp
-func BJJCompressedTo256BigInts(pkComp babyjub.PublicKeyComp) [256]*big.Int {
-	var r [256]*big.Int
-	b := pkComp[:]
-
-	for i := 0; i < 256; i++ {
-		if b[i/8]&(1<<(i%8)) == 0 {
-			r[i] = big.NewInt(0)
-		} else {
-			r[i] = big.NewInt(1)
-		}
-	}
-
-	return r
-}
-
-// formatAccumulatedFees returns an array of [nFeeAccounts]*big.Int containing
-// the balance of each FeeAccount, taken from the 'collectedFees' map, in the
-// order of the 'orderTokenIDs'
-func formatAccumulatedFees(collectedFees map[common.TokenID]*big.Int, orderTokenIDs []*big.Int) []*big.Int {
-	accFeeOut := make([]*big.Int, len(orderTokenIDs))
-	for i := 0; i < len(orderTokenIDs); i++ {
-		tokenID := common.TokenIDFromBigInt(orderTokenIDs[i])
-		if _, ok := collectedFees[tokenID]; ok {
-			accFeeOut[i] = new(big.Int).Set(collectedFees[tokenID])
-		} else {
-			accFeeOut[i] = big.NewInt(0)
-		}
-	}
-	return accFeeOut
-}