Clean code improvements.

parsing/cliargs.go

@@ -7,7 +7,6 @@ import (
 )
 
 type Cliargs struct {
-	value *big.Int
 }
 
 func (arg *Cliargs) Parse() (*big.Int, error) {
@@ -19,10 +18,5 @@ func (arg *Cliargs) Parse() (*big.Int, error) {
 	if !success {
 		return nil, errors.New("argument is not an integer")
 	}
-	arg.value = num
 	return num, nil
 }
-
-func (arg *Cliargs) GetNumber() *big.Int {
-	return arg.value
-}