[YouTube] Remove combined Trending kiosk

[TobiGr]

• [x] I carefully read the contribution guidelines and agree to them.
• [x] I have tested the API against NewPipe.
• [x] I agree to create a pull request for NewPipe as soon as possible to make it compatible with the changed API.

YouTube returns an error page when requesting the deprecated trending kiosk page. RIP :(

Some tests were replaced to test the link handlers of new kiosks. Not all are covered.