remove unused method

tools/goctl/api/gogen/util.go

@@ -22,7 +22,6 @@ func getParentPackage(dir string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	absDir = strings.ReplaceAll(absDir, `\`, `/`)
 
 	absDir = strings.ReplaceAll(absDir, `\`, `/`)
 	var rootPath string