css.types.angle-percentage: delete child elements

[bershanskiy]

Summary

Fix mdn_url for css.types.angle-percentage

Related issues

This is one of the issues found by #5201

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[Elchi3]

Hm well, there is no documentation under https://developer.mozilla.org/en-US/docs/Web/CSS/angle-percentage#deg but there is under https://developer.mozilla.org/en-US/docs/Web/CSS/angle#deg.
So, the URLs are correct, I guess?

[bershanskiy]

Hm well, there is no documentation under https://developer.mozilla.org/en-US/docs/Web/CSS/angle-percentage#deg but there is under https://developer.mozilla.org/en-US/docs/Web/CSS/angle#deg.

That can be easily fixed, if desired (I could update English locale and add stubs to all other locales). As is, the docs URLs are a bit misleading and kinda defeat having <angle-percentage> page at all.

[Elchi3]

Thank you so much for volunteering to fix this!
I don't really know why things are set up the way they are. Maybe @rachelandrew has thoughts on the matter?

[rachelandrew]

I think it just hasn't been added there yet so if you want to add it that would be great!

[bershanskiy]

@Elchi3 @rachelandrew

Actually, now that I had more time to think about it I don't understand the need for <angle> types under <angle-percentage> data type. Specifically, since <angle-percentage> is equivalent to [ <angle> | <percentage> ], then all degree units/types children of css.types.angle-percentage have to be exactly the same as under css.types.angle; the percentage type/unit is just that -- a percentage.

So it would make more sense to me if we just deleted the redundant data:

• css.types.angle-percentage.deg (already stored as css.types.angle.deg),
• css.types.angle-percentage.grad (already stored as css.types.angle.grad),
• css.types.angle-percentage.rad (already stored as css.types.angle.rad), and
• css.types.angle-percentage.turn (already stored as css.types.angle.turn).
  That would shrink angle-percentage.json to only contain css.types.angle-percentage.__compat.

Is there something I'm missing like angle-percentage interaction with other stuff?

[Elchi3]

This seems like the right call to me, but @rachelandrew might know more here.

[rachelandrew]

LGTM

[queengooborg]

Thanks, @bershanskiy! I think we're good to go on this since we have two approvals already. 😉