Optimisations and fixed a couple of DDOS issues in the miner

core/error.go

@@ -68,23 +68,6 @@ func IsValidationErr(err error) bool {
 	return ok
 }
 
-type GasLimitErr struct {
-	Message string
-	Is, Max *big.Int
-}
-
-func IsGasLimitErr(err error) bool {
-	_, ok := err.(*GasLimitErr)
-
-	return ok
-}
-func (err *GasLimitErr) Error() string {
-	return err.Message
-}
-func GasLimitError(is, max *big.Int) *GasLimitErr {
-	return &GasLimitErr{Message: fmt.Sprintf("GasLimit error. Max %s, transaction would take it to %s", max, is), Is: is, Max: max}
-}
-
 type NonceErr struct {
 	Message string
 	Is, Exp uint64