[NumberFormatter] Implement `signDisplay` `negative` option polyfill

[isBatak]

Provide a general summary of the feature here

🤔 Expected Behavior?

😯 Current Behavior

💁 Possible Solution

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🔦 Context

💻 Examples

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🧢 Your Company/Team

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🕷 Tracking Issue

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[reidbarber]

I think we can probably remove the pollyfill. It looks like signDisplay has been in every major browser and Node since 2021: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#browser_compatibility

Unless there is some other reason to keep it around.

[isBatak]

This particular property is newer, from chrome 106 which is from September 2022

[snowystinger]

We only support roughly the latest 2-3 major browser versions, Chrome is well beyond (144), I think it can be removed.

This particular property is newer, from chrome 106 which is from September 2022

Are you saying you're on this version?

Theoretically it isn't running for anyone anymore, as it checks if we can use the native browser implementation. I just tried removing it and it passes in Node 22 & 24