diff --git a/book.toml b/book.toml
index bcb158838ab..6478bc3f316 100644
--- a/book.toml
+++ b/book.toml
@@ -48,9 +48,6 @@ urlcolor = "red"
 curly-quotes = true
 additional-js = [
   "theme/speaker-notes.js",
-  "theme/redbox.js",
-  "theme/save-playgrounds.js",
-  "theme/instructor-menu.js",
 ]
 additional-css = [
   "theme/css/svgbob.css",