Remove no toplevel codecademy cheatsheets

[davorpa]

need higher level link

No high level for each CodeCademy cheatsheet we have listed. Are structured in chapters and with a pdf each one. Entrypoint is always first chapter.

Better remove all of them in our listings?

Originally posted by @davorpa and @eshellman in #5696 (comment)

[vipul-2003]

i am interested to work upon this , but please explain in details , what exactly i have to do cheatsheet.md file ?
@davorpa

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity during last 60 days 😴

It will be closed in 30 days if no further activity occurs. To unstale this issue, remove stale label or add a comment with a detailed explanation.

There can be many reasons why some specific issue has no activity. The most probable cause is lack of time, not lack of interest.

Thank you for your patience ❤️

[github-actions]

This issue has been automatically closed because it has been inactive during the last 30 days since being marked as stale.

As author or maintainer, it can always be reopened if you see that carry on been useful.

Anyway, thank you for your interest in contribute ❤️