Updates post review

* remove StreamCodeAndCodeHash
* Makefile: local build target
* clean up comments & unused

adapt/util.go

@@ -1,23 +1,11 @@
 package adapt
 
 import (
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/params"
 
-	plugeth "github.com/openrelayxyz/plugeth-utils/core"
 	plugeth_params "github.com/openrelayxyz/plugeth-utils/restricted/params"
 )
 
-func StateAccount(a *plugeth.StateAccount) *types.StateAccount {
-	return &types.StateAccount{
-		Nonce:    a.Nonce,
-		Balance:  a.Balance,
-		Root:     common.Hash(a.Root),
-		CodeHash: a.CodeHash,
-	}
-}
-
 func ChainConfig(cc *plugeth_params.ChainConfig) *params.ChainConfig {
 	return &params.ChainConfig{
 		ChainID:             cc.ChainID,