fix config for v0.19.0

config.toml

@@ -25,9 +25,6 @@ credit-text = """Le thème et couleurs sont sous license <a target="_blank" rel=
 404-text = "Quoi que vous cherchiez, ce n'est pas ici..."
 
 [languages.en]
-languageName = "English"
-languageCode = "en"
-generate_feed = true
 [languages.en.translations]
 published-on = "Published on:"
 published-by = "By"
@@ -74,4 +71,4 @@ header_nav = [
   { url = "/frens", name_en = "frens", name_fr = "potes" },
   { url = "/contacts", name_en = "contacts", name_fr = "contacts" },
 ]
-header_nav_delimiter = "∴"
+header_nav_delimiter = "∴"