**Reason**:
One off experiment by @MarkTraceur , it was great at the time. Wikiapari shows [[ https://wikiapiary.com/wiki/Extension:EtherEditor | no usage ]], the extension did not receive much patches beside the usual routine maintenance.
- [ ] Archive documentation on `mediawiki.org` https://www.mediawiki.org/wiki/Extension:EtherEditor
- [ ] Remove from `mediawiki/extensions` along with in `.gitmodules`)
- [x] Remove tests in `integration/config` ( `zuul/layout.yaml` )
- [ ] Remove from `translatewiki` ( `groups/MediaWiki/mediawiki-extensions.txt` )
- [ ] Remove manifest/other references from `mediawiki/vagrant` if they exist
- [ ] Empty repository and add a OBSOLETE file.
- [ ] Archive Phabricator project #mediawiki-extensions-ethereditor for associated extension
- [ ] Edit Phabricator project #mediawiki-extensions-ethereditor description for associated extension with a link to this ticket
- [ ] Archive the extension's diffusion repository: https://phabricator.wikimedia.org/diffusion/EETH/
- [ ] Mark the repository read-only in Gerrit: https://gerrit.wikimedia.org/r/admin/projects/mediawiki/extensions/EtherEditor
- [ ] Delete the GitHub mirror: https://github.com/wikimedia/mediawiki-extensions-EtherEditor