CHANGELOG.md: Undo version 8.5.0.0

[mhendric]

Pull Request (PR) description

Removes version 8.5.0.0 from CHANGELOG.md

This Pull Request (PR) fixes the following issues

None

Task list

• Added an entry under the Unreleased section of the change log in
  CHANGELOG.md. Entry should say what was changed, and how that affects
  users (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, schema.mof
  and comment-based help.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as
  appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See
  DSC Resource Testing Guidelines.
• Integration tests added/updated (where possible). See
  DSC Resource Testing Guidelines.
• New/changed code adheres to
  DSC Resource Style Guidelines
  and
  Best Practices.

---

This change is 

[codecov-io]

Codecov Report

Merging #524 into dev will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff         @@
##            dev   #524   +/-   ##
===================================
  Coverage    74%    74%           
===================================
  Files        27     27           
  Lines      4031   4031           
  Branches      4      4           
===================================
  Hits       3005   3005           
  Misses     1022   1022           
  Partials      4      4

[PlagueHO]

Done. Thanks @mhendric

[PlagueHO]

Reviewed 1 of 1 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved