Remove duplicated code that resulted after a merge conflict. (#37477)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/37477

When creating a stack of several codegen fixes, a conflit generated some duplicated code we moved to the parsers from the utils.

This change removes that duplicated cone.

## Changelog:
[Genearal][Fixed] - Remove duplicated code.

Reviewed By: cortinico

Differential Revision: D45979013

fbshipit-source-id: 78cb89df81305221258e283ba5924135d498e800