diff --git a/core/types/simulated_tx.go b/core/types/simulated_tx.go
deleted file mode 100644
index 63bec82ce59d..000000000000
--- a/core/types/simulated_tx.go
+++ /dev/null
@@ -1,16 +0,0 @@
-package types
-
-import (
-	"encoding/json"
-)
-
-type SimulationDebugInfoResponse struct {
-	StartSimulateMs int64 `json:"start_simulate_ms"`
-	EndSimulateMs   int64 `json:"end_simulate_ms"`
-}
-
-type SimulationTxResponse struct {
-	PendingBlockNumber uint64                      `json:"pending_block_number"`
-	DebugInfo          SimulationDebugInfoResponse `json:"debug_info"`
-	CallFrame          json.RawMessage             `json:"call_frame"`
-}