Turn off more inline styles for WHATWG

[annevk]

And also switch to a non-legacy syntax and align defaults between normal and RD.

[annevk]

(I guess when landing this it can close whatwg/meta#188.)

[annevk]

@sideshowbarker was it intentional that -RD did not have style-mdn-anno off, script-mdn-anno off?

[annevk]

I guess since Use Dfn Panels is off that doesn't matter. (I'll include omitting them there to keep things as much the same as possible though.) There are some other bits that seem out-of-sync though.

[domenic]

Looking at https://dom.spec.whatwg.org/review-drafts/2019-06/ it seems that the mdn anno styles are done inline, so we probably shouldn't turn them off for review drafts yet.

To fix that we'd need to move https://github.com/whatwg/whatwg.org/blob/7a2314f5c2ed2a29668b24d5f6bc7d94bd2f056a/resources.whatwg.org/standard-shared-with-dev.css#L96 into https://github.com/whatwg/whatwg.org/blob/master/resources.whatwg.org/spec.css. Which we should probably do anyway; e.g. https://html.spec.whatwg.org/review-drafts/2020-01/#events is pretty broken.

[annevk]

So https://dom.spec.whatwg.org/review-drafts/2020-06/ is newer and doesn't include any MDN boxes. The shared-with-W3C version has a custom pipeline that's not under version control (yet) so I'm not sure that's a good reference.

[tabatkins]

This looks good overall; feel free to merge whenever y'all want.

[sideshowbarker]

@sideshowbarker was it intentional that -RD did not have style-mdn-anno off, script-mdn-anno off?

Not intentional