Remove the api.Node.baseURIObject entry

[foolip]

This is a Gecko "ChromeOnly" attribute not exposed to the web:
https://github.com/mozilla/gecko-dev/blob/8a4aa0c699d9ec281d1f576c9be1c6c1f289e4e7/dom/webidl/Node.webidl#L109

The string "baseURIObject" does not appear in Chromium or WebKit source,
apart from one instane in a gecko_dom.js as part of a test suite.

https://developer.mozilla.org/en-US/docs/Web/API/Node/baseURIObject
should be redirected to Node.

[foolip]

Once approved, I can take care of redirecting https://developer.mozilla.org/en-US/docs/Web/API/Node/baseURIObject. Or if the reviewer would like to do it and merge directly, that's also OK.

[foolip]

#7521 is very similar but with an extra error in the data thrown in. Dealing with them together would probably still make sense though.

[Elchi3]

I created the redirect and also removed baseURIObject from the main Node page.

Is there a list you work from for these? I think there are (at least) 4 more that are mentioned here: https://wiki.developer.mozilla.org/en-US/docs/Web/API/Node#Obsolete_properties

[foolip]

@Elchi3 I don't have a list, these were just the two I came across in #7515.

3 of the remaining ones in https://wiki.developer.mozilla.org/en-US/docs/Web/API/Node#Obsolete_properties are #6545, feedback on the proposed resolution appreciated.

The remaining rootNode indeed looks ripe for removal, however. I'll give it a go.

[foolip]

The go was given in #7524.