remove unused multilingual option

tuminoid · tuminoid · commit 9d49026442e5 · 2025-08-11T08:11:08.000+03:00
Remove unused multilingual option as it has been removed from mdbook.

Signed-off-by: Tuomo Tanskanen &lt;tuomo.tanskanen@est.tech&gt;
diff --git a/docs/user-guide/book.toml b/docs/user-guide/book.toml
@@ -1,7 +1,6 @@
 [book]
 authors = ["Metal³ community"]
 language = "en"
-multilingual = false
 src = "src"
 title = "Metal³ user-guide"
 
