Revert #3493374 after finished #3493742

Problem/Motivation

In #3493374 we added some code for a workaround for Core #3493742. If the core issue is released we should remove the code from Klaro! module.

See https://git.drupalcode.org/project/klaro/-/merge_requests/59/diffs
and https://www.drupal.org/project/drupal/issues/3493742 🐛 Double encoded ampersand in /admin/reports/updates Active