core/state: remove unused methods ReturnGas, GetStorageProofByHash (#23092)

Co-authored-by: lidongwei <lidongwei@huobi.com>

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) {}