From 7a55b9f7882abe14b11132c72f8bfc916c02f0d1 Mon Sep 17 00:00:00 2001
From: Daniel Liu <liudaniel@qq.com>
Date: Thu, 22 Feb 2024 19:53:37 +0800
Subject: [PATCH] core/state: remove unused methods ReturnGas (#23092)

---
 core/state/state_object.go | 3 ---
 core/vm/logger_test.go     | 1 -
 eth/tracers/tracer_test.go | 1 -
 3 files changed, 5 deletions(-)

diff --git a/core/state/state_object.go b/core/state/state_object.go
index 53ea774d61..6d50461f15 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -306,9 +306,6 @@ func (self *stateObject) setBalance(amount *big.Int) {
 	}
 }
 
-// Return the gas back to the origin. Used by the Virtual machine or Closures
-func (c *stateObject) ReturnGas(gas *big.Int) {}
-
 func (self *stateObject) deepCopy(db *StateDB, onDirty func(addr common.Address)) *stateObject {
 	stateObject := newObject(db, self.address, self.data, onDirty)
 	if self.trie != nil {
diff --git a/core/vm/logger_test.go b/core/vm/logger_test.go
index 9ee02b97c0..f6c15d9cbb 100644
--- a/core/vm/logger_test.go
+++ b/core/vm/logger_test.go
@@ -30,7 +30,6 @@ type dummyContractRef struct {
 	calledForEach bool
 }
 
-func (dummyContractRef) ReturnGas(*big.Int)          {}
 func (dummyContractRef) Address() common.Address     { return common.Address{} }
 func (dummyContractRef) Value() *big.Int             { return new(big.Int) }
 func (dummyContractRef) SetCode(common.Hash, []byte) {}
diff --git a/eth/tracers/tracer_test.go b/eth/tracers/tracer_test.go
index a7266c1788..577fd1e576 100644
--- a/eth/tracers/tracer_test.go
+++ b/eth/tracers/tracer_test.go
@@ -40,7 +40,6 @@ func (account) SetBalance(*big.Int)                                 {}
 func (account) SetNonce(uint64)                                     {}
 func (account) Balance() *big.Int                                   { return nil }
 func (account) Address() common.Address                             { return common.Address{} }
-func (account) ReturnGas(*big.Int)                                  {}
 func (account) SetCode(common.Hash, []byte)                         {}
 func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}