Chore: remove whatwg-fetch

[iamacook]

What it solves

Removes unnecessary dependency

How this PR fixes it

whatwg-fetch has been uninstalled.

How to test it

Observe the tests passing.

Checklist

• I've tested the branch on mobile 📱
• I've documented how it affects the analytics (if at all) 📊
• I've written a unit/e2e test for it (if applicable) 🧑‍💻

[github-actions]

Branch preview

✅ Deploy successful!

https://remove_whatwg_fetch--walletweb.review-wallet-web.5afe.dev

[katspaugh]

👍

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[usame-algan]

whatwg-fetch is imported inside jest.setup.js. Have you tested if it works without?

[usame-algan]

Looks like it works without it. I also tested it locally with node v16 without issues running tests.

[iamacook]

I'm going to merge this direcly as it is only test-related and the CI passes.