chore: remove release scripts (#28451)

Issue number: N/A

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## What is the current behavior?
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These scripts are old and do not do anything (`np` isn't even a
dependency).

## What is the new behavior?
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this PR. -->

- Removed the scripts from react and react-router

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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