remove cookie question from general-questions

[maxrchung]

This change removes the cookie, session storage, and local storage question from general-questions. This question is already asked in html-questions so I don't think it needs to be repeated here.

If redundancy is okay and we want to keep it in general-questions, I would then suggest ending this with a period instead of a question mark since it is an imperative statement instead of a question.

Type of change

• Revision of an existing question

Checklist:

• My content follows the style guidelines of this project
• I have performed a self-review of my own content