refactor: Remove deprecation related to cookies

[neznaika0]

Description
See #5429 v4.1.6
See #6413 v4.2.6
I looked for dependencies, everything seems to be in order.

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[github-actions]

👋 Hi, @neznaika0!

We detected conflicts in your PR against the base branch 🙊
You may want to sync 🔄 your branch with upstream!

Ref: Syncing Your Branch

[neznaika0]

Thank you for your patience. But what is the best way to update multiple PR with conflicts? Which will be the first accepted to update the second, the third..?

[paulbalandan]

Thank you for your patience. But what is the best way to update multiple PR with conflicts? Which will be the first accepted to update the second, the third..?

For PRs that touch code in system, they are generally ready to merge when they have at least 2 approving reviews.

[neznaika0]

I understand it's about the latest commits. Should I update all PR after accepting the first one, or wait for the rebase message? While the "stale" is hanging, you may not accept PR.

[paulbalandan]

As this PR has 1 review while the other has 2 reviews, you can rebase the other now. After that is merged, you can rebase this for a review.

[paulbalandan]

@neznaika0 pls rebase this again. thanks