Clean out jsonlint/jshint

For MediaWiki extensions:

Remove check: [jshint, jsonlint]

When mwgate-npm has been enabled, remove mwgate-jsonlint
Remove mwgate-jshint if grunt-contrib-jshint is in the repo.

Also remove a few archived repositories.

Bug: T119973
Change-Id: I66a4353c7c0f30ec548e49015d76542a5d509839