Merge pull request #668 from onflow/janez/remove-transaction-mutex

Remove transactions mutex

Author: janezpodhostnik

storage/pebble/transactions.go

@@ -1,8 +1,6 @@
 package pebble
 
 import (
-	"sync"
-
 	"github.com/cockroachdb/pebble"
 	"github.com/onflow/go-ethereum/common"
 
@@ -14,20 +12,15 @@ var _ storage.TransactionIndexer = &Transactions{}
 
 type Transactions struct {
 	store *Storage
-	mux   sync.RWMutex
 }
 
 func NewTransactions(store *Storage) *Transactions {
 	return &Transactions{
 		store: store,
-		mux:   sync.RWMutex{},
 	}
 }
 
 func (t *Transactions) Store(tx models.Transaction, batch *pebble.Batch) error {
-	t.mux.Lock()
-	defer t.mux.Unlock()
-
 	val, err := tx.MarshalBinary()
 	if err != nil {
 		return err
@@ -39,9 +32,6 @@ func (t *Transactions) Store(tx models.Transaction, batch *pebble.Batch) error {
 }
 
 func (t *Transactions) Get(ID common.Hash) (models.Transaction, error) {
-	t.mux.RLock()
-	defer t.mux.RUnlock()
-
 	val, err := t.store.get(txIDKey, ID.Bytes())
 	if err != nil {
 		return nil, err