[Sync EN] Remove SimpleXML from bool false examples (#5553)

[github-actions]

Commit: https://github.com/php/doc-en/commit/4657c1173e6b3852cdc8db4fc64f380d10ebae0c
PR: https://github.com/php/doc-en/pull/5553

Fichiers FR à mettre à jour

• language/types/boolean.xml