Align with the latest charter template

[plehegar]

The W3C Team found some recent discrepancies with the charter template and this pull request realigns the proposed charter with the latest charter.

• "all known" has been reintroduced in the charter template (it was dropped too early) [template] Removal of the words "all known" in the current charter template w3c/charter-drafts#435
• mitigation wording was also dropped from the charter template [template] Privacy should be mitigated, not just detailed w3c/charter-drafts#416
• Mention of Director was dropped from the template to align with latest Process document [template] Remove reference to Director w3c/charter-drafts#422

Unless we hear otherwise from the CG by September 29 October 9, the W3Cteam will start the AC review of this charter with this pull request included.

cc @AramZS @seanturner

[AramZS]

As we have previously discussed, we have attempted to meet the expectation of matching our charter with the template and its updates unless we have strong reasons not to. These changes would do exactly that. Generally, the larger group appears to have agreed to this process. Since this is similar to other changes that would sync our charter with the template I think we can merge in these changes in advance of our next meeting. Please note any objections here and we will aim to merge in two weeks if there are none or if we cannot resolve them via online discussion here.

[plehegar]

(I updated the date to be October 9 since the CG wants 2 weeks)

[himorin]

Coordination section remains old?? (saw 'performance' HR)

[AramZS]

@himorin I see that is removed from the template, unfortunate that isn't part of the horizontal review process but I agree that we should conform to the template on this one as closely as possible.

[AramZS]

@himorin - Fixed

[AramZS]

Last chance for objections. Otherwise, I will be merging this PR 4 hours from the time this comment was posted.

[AramZS]

This PR has not received any objections and has been merged in.