diff --git a/database/orm/block_result.go b/database/orm/block_result.go
index cb5ddc170..356afe62f 100644
--- a/database/orm/block_result.go
+++ b/database/orm/block_result.go
@@ -7,7 +7,6 @@ import (
 	"errors"
 	"fmt"
 	"strings"
-	"time"
 
 	"github.com/jmoiron/sqlx"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -208,15 +207,3 @@ func (o *blockResultOrm) DeleteTraceByNumber(number uint64) error {
 	}
 	return nil
 }
-
-func (o *blockResultOrm) NumberOfBlocksInLastHour() (uint64, error) {
-	startTime := time.Now().Unix() - 3600
-	row := o.db.QueryRow(`SELECT COUNT(*) FROM block_result WHERE block_timestamp >= $1;`, startTime)
-
-	var count uint64
-	err := row.Scan(&count)
-	if err != nil {
-		return 0, nil
-	}
-	return count, nil
-}
diff --git a/database/orm/interface.go b/database/orm/interface.go
index b51fdaae6..26bdd01e5 100644
--- a/database/orm/interface.go
+++ b/database/orm/interface.go
@@ -75,7 +75,6 @@ type BlockResultOrm interface {
 	InsertBlockResultsWithStatus(ctx context.Context, blockResults []*types.BlockResult, status BlockStatus) error
 	UpdateProofByNumber(ctx context.Context, number uint64, evmProof, stateProof []byte, proofTimeSec uint64) error
 	UpdateBlockStatus(number uint64, status BlockStatus) error
-	NumberOfBlocksInLastHour() (uint64, error)
 }
 
 // RollupResultOrm rollupResult operation interface