diff --git a/core/themes/classy/classy.libraries.yml b/core/themes/classy/classy.libraries.yml
index 874d7f0..852d58a 100644
--- a/core/themes/classy/classy.libraries.yml
+++ b/core/themes/classy/classy.libraries.yml
@@ -25,8 +25,6 @@ base:
       css/components/tabs.css: { weight: -10 }
       css/components/textarea.css: { weight: -10 }
       css/components/ui-dialog.css: { weight: -10 }
-    theme:
-      css/layout.css: {}
 
 book-navigation:
   version: VERSION