Reconciles duplicate pages

[yetanothertw]

To remove duplication and ensure that information stays accurate, the Elasticsearch privileges page won't include detailed information about each privilege and their descriptions, and instead will refer users to Elasticsearch privileges in the Reference section.

Fixes #2218

[yetanothertw]

@shainaraskas -- what are your thoughts on all the pages within the User roles section (and other pages within the Deploy and manage section of the docs-content repo) that link to this page? Should they be updated to point to the page in the Reference section or is it okay to leave them as is?

[shainaraskas]

@yetanothertw I think the xlinks definitely need to be updated. here's what I'd do:

• kill this page and redirect
• add an xlink to the nav to the new page because this page is so important (see Add crosslinks to toc: in docset.yml docs-builder#1615 - not yet merged)
• diff the two pages - some stuff might have been added here and not in the elasticsearch repo

[shainaraskas]

the reason I'd kill the page is that this page is too tiny and useless to be valuable, which means it would suck to land on it. we should prob always kill pages that are under 10 lines like this unless they disambiguate child pages.

[shainaraskas]

I do like your additions though ... if you want to, you can keep the page (would still prob recommend killing it) but I would change the xlinks because in most cases we're trying to draw their attention to a specific permission / the list of permissions

[yetanothertw]

My only concern about removing it entirely is the gap it leaves in the TOC:

At the moment it's sort of a logical equivalent to the Kibana privileges page and if we remove it, it might be confusing, might look like a knowledge gap. 🤷‍♀️

[yetanothertw]

Re diffing, it's the opposite, it seems there are additions in the page in the Reference section but not in Deploy and manage.

[shainaraskas]

@yetanothertw yeah that's why we would put the crosslink in (it would sit in the same spot)

[shainaraskas]

I also would move your additions over to the other copy of the page :)

[yetanothertw]

OK, I see what you mean.

1. I'll work on refactor applies_to info in security-privileges.md #2215 and will move my additions as part of that issue.
2. Will keep this PR (for when Add crosslinks to toc: in docset.yml docs-builder#1615 is merged) and delete the page and add an xlink to the nav to the new page.
3. I'll open another PR to replace links that point to this page with links that will point to the reference page.