Those have never been implemented. Web DOM Core lays them to rest.
Created attachment 495228 [details] [diff] [review]
This is post-2.0.
Comment on attachment 495228 [details] [diff] [review]
Could we also remove normalizeDocument() as it's just an alias for normalize()?
Certainly. I filed bug 641190.
This needs merging to tip (and probably IID changes to nsIDOM*Document, since it will now change nsIDOMDocument).
And mentioned on Firefox 6 for developers.