params: unused code

params/config.go

@@ -378,32 +378,6 @@ func (c *ChainConfigExtra) CheckCompatible(newcfg_ *ChainConfig, headNumber *big
 	return nil
 }
 
-// isForkBlockIncompatible returns true if a fork scheduled at block s1 cannot be
-// rescheduled to block s2 because head is already past the fork.
-func isForkBlockIncompatible(s1, s2, head *big.Int) bool {
-	return (isBlockForked(s1, head) || isBlockForked(s2, head)) && !configBlockEqual(s1, s2)
-}
-
-// isBlockForked returns whether a fork scheduled at block s is active at the
-// given head block. Whilst this method is the same as isTimestampForked, they
-// are explicitly separate for clearer reading.
-func isBlockForked(s, head *big.Int) bool {
-	if s == nil || head == nil {
-		return false
-	}
-	return s.Cmp(head) <= 0
-}
-
-func configBlockEqual(x, y *big.Int) bool {
-	if x == nil {
-		return y == nil
-	}
-	if y == nil {
-		return x == nil
-	}
-	return x.Cmp(y) == 0
-}
-
 // isForkTimestampIncompatible returns true if a fork scheduled at timestamp s1
 // cannot be rescheduled to timestamp s2 because head is already past the fork.
 func isForkTimestampIncompatible(s1, s2 *uint64, head uint64) bool {
@@ -434,28 +408,6 @@ func configTimestampEqual(x, y *uint64) bool {
 // ChainConfig that would alter the past.
 type ConfigCompatError = gethparams.ConfigCompatError
 
-func newBlockCompatError(what string, storedblock, newblock *big.Int) *ConfigCompatError {
-	var rew *big.Int
-	switch {
-	case storedblock == nil:
-		rew = newblock
-	case newblock == nil || storedblock.Cmp(newblock) < 0:
-		rew = storedblock
-	default:
-		rew = newblock
-	}
-	err := &ConfigCompatError{
-		What:          what,
-		StoredBlock:   storedblock,
-		NewBlock:      newblock,
-		RewindToBlock: 0,
-	}
-	if rew != nil && rew.Sign() > 0 {
-		err.RewindToBlock = rew.Uint64() - 1
-	}
-	return err
-}
-
 func newTimestampCompatError(what string, storedtime, newtime *uint64) *ConfigCompatError {
 	var rew *uint64
 	switch {