"Hide" Versions Menu from translation and its nested pages

This issue has evolved and currently we've decided not to hide any of the deprecations pages. Hence I'm setting this issue to be strictly related to hiding the versions menu specifically. Here're the final plans regarding this implementation:

Implementation Details

When the japanese docs are released, there will be only the current version that has most number of pages available in japanese. As a result, showing the versions menu might be misleading to the user. We will be hiding the versions menu temporarily until japanese docs reach a potential number of versions after release. More details in this thread.

(Still listing) Older version of the issue details:

The following discussion from gitlab-com/localization/tech-docs-forked-projects/prod/gitlab!135 should be addressed:

• @mjsibanez started a discussion: (+3 comments)

  ❓ @opysaryuk as we're not translating any previous GitLab versions for docs (see screenshot to see what I'm referring to "versions"), should we just "hide" this doc/update/deprecations.md file from translation? We should add this file to the whole logic and process we did in MVC to hide "Contribute" pages and navigation i... (#203 - closed) so that it's accessible via the left side nav and, when accessed from the JA page, be redirected to the EN deprecations doc URL: https://docs.gitlab.com/update/deprecations/