moved resources to correct location (#50101)

Summary:
In the final XCFramework we no longer need to place resource bundles in a subfolder called Resources - they should be located directly in the framework folder.

This commit fixes this by removing copying to the Resources folder. I also removed a few unneeded tests since we know that we are in a valid folder at this point.

bypass-github-export-checks

## Changelog:

[INTERNAL]  - Moved resource bundles up one level

Pull Request resolved: https://github.com/facebook/react-native/pull/50101

Test Plan: Run RNTester with RCT_USE_RN_DEP=1 and verify that it launches

Reviewed By: cortinico

Differential Revision: D71464608

Pulled By: cipolleschi

fbshipit-source-id: 6cfdda0c6785ffeb13c170f9fd2dd9f5b889d490