utils: remove the config.go file

go/utils/config.go

@@ -1,24 +0,0 @@
-package utils
-
-import (
-	"errors"
-	"fmt"
-	"os"
-)
-
-func GetConfigFile(name string) (*os.File, error) {
-	_, err := os.Stat(name)
-	if err != nil {
-		if errors.Is(err, os.ErrNotExist) {
-			//create file
-			file, err := os.Create(name)
-			if err != nil {
-				return nil, fmt.Errorf("fail to create config file: %w", err)
-			}
-			return file, err
-		} else {
-			return nil, err
-		}
-	}
-	return os.OpenFile(name, os.O_RDWR, 0644)
-}