[Sync EN] Remove 11 unused entities still referenced by translations (#5628)

[github-actions]

Commit: https://github.com/php/doc-en/commit/de78d65ef7785a167268b3cb5d5268b13bb9f358
PR: https://github.com/php/doc-en/pull/5628

Fichiers FR à mettre à jour

• language-snippets.ent