response: remove text from default statusCode
According to the [specification](https://fetch.spec.whatwg.org/#concept-response-status-message) the text of the default statusCode text should be empty.
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#24371
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- [x] These changes do not require tests because it is a simple string change that having tests would just be useless
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c60d4f46a0
