[Bug] Unused methods in `chai-extras.js` related to UI tests

[Michal Kleiner]

What happened?

checkForDangerousLinks and performAutomaticPageChecks in chai-extras.js are not used since switching from PhantomJS to headless Chrome 5 years ago.

What should happen?

The methods should be reinstated or removed.

How can this be reproduced?

Look at the code at https://github.com/matomo-org/matomo/blob/5.x-dev/tests/lib/screenshot-testing/support/chai-extras.js#L259 and search for usage of the mentioned methods.

Matomo version

5

PHP version

N/A

Server operating system

N/A

What browsers are you seeing the problem on?

Not applicable (e.g. an API call etc.)

Computer operating system

N/A

Relevant log output

No response

Validations

• Read our Contributing Guidelines.
• Follow our Security Policy.
• Check that there isn't already an issue that reports the same bug to avoid creating duplicates.
• The provided steps to reproduce is a minimal reproducible of the Bug.