miner: initialize maps with capacity (#27228)

* miner : initialize maps with known size

* miner:some reverts

miner/worker.go

@@ -628,7 +628,7 @@ func (w *worker) mainLoop() {
 				if gp := w.current.gasPool; gp != nil && gp.Gas() < params.TxGas {
 					continue
 				}
-				txs := make(map[common.Address]types.Transactions)
+				txs := make(map[common.Address]types.Transactions, len(ev.Txs))
 				for _, tx := range ev.Txs {
 					acc, _ := types.Sender(w.current.signer, tx)
 					txs[acc] = append(txs[acc], tx)