RFR: JDK-8258659: Eliminate whitespace comments from generated pages

Mon Jan 11 15:28:59 UTC 2021

On Fri, 18 Dec 2020 04:20:39 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

> Empty comments were being used to stop empty nodes being optimized away in `HtmlTree.add`, but the empty comments caused annoying noise in the generated docs.  A better solution is to use `HtmlTree.EMPTY`, which had the right effect, without the unwanted side-effects.

Nice to get rid of this. +1

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Marked as reviewed by hannesw (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1836