Revert "use current block's base fee in txpool"

This reverts commit 8a7d7ff.

core/tx_pool.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/common/prque"
+	"github.com/scroll-tech/go-ethereum/consensus/misc"
 	"github.com/scroll-tech/go-ethereum/core/rawdb"
 	"github.com/scroll-tech/go-ethereum/core/state"
 	"github.com/scroll-tech/go-ethereum/core/types"
@@ -1333,9 +1334,9 @@ func (pool *TxPool) runReorg(done chan struct{}, reset *txpoolResetRequest, dirt
 	if reset != nil {
 		pool.demoteUnexecutables()
 		if reset.newHead != nil && pool.chainconfig.IsCurie(new(big.Int).Add(reset.newHead.Number, big.NewInt(1))) {
-			// note: we cannot predict the next block's base fee since it is set
-			// by the sequencer, so we use the current block's base fee instead.
-			pool.priced.SetBaseFee(reset.newHead.BaseFee)
+			l1BaseFee := fees.GetL1BaseFee(pool.currentState)
+			pendingBaseFee := misc.CalcBaseFee(pool.chainconfig, reset.newHead, l1BaseFee)
+			pool.priced.SetBaseFee(pendingBaseFee)
 		}
 		// Update all accounts to the latest known pending nonce
 		nonces := make(map[common.Address]uint64, len(pool.pending))