Remove HTTPS state

[domenic]

Part of whatwg/fetch#1062. Closes #929.

• At least two implementers are interested (and none opposed):
  • All implementers do not use the HTTPS state concept. Apparently Chrome did at one time, but I checked and we're OK removing it.
• Tests are written and can be reviewed and commented upon at:
  • This isn't really testable, I don't think?
• Implementation bugs are filed:
  • N/A

(See WHATWG Working Mode: Changes for more details.)

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BTW the hyperlink auditing section could use an editorial overhaul; maybe I'll work on that at some point.

Other specs have also been PRed for this; see the GitHub-generated links in whatwg/fetch#1062.

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/browsing-the-web.html ( diff )
/dom.html ( diff )
/iframe-embed-object.html ( diff )
/infrastructure.html ( diff )
/links.html ( diff )
/origin.html ( diff )
/webappapis.html ( diff )
/window-object.html ( diff )
/workers.html ( diff )