diff --git a/lisp/doom.el b/lisp/doom.el
index 71ab4fd15..22e9b7996 100644
--- a/lisp/doom.el
+++ b/lisp/doom.el
@@ -481,21 +481,6 @@ users).")
         (setq load-suffixes (get 'load-suffixes 'initial-value)
               load-file-rep-suffixes (get 'load-file-rep-suffixes 'initial-value))))
 
-    ;; PERF: Doom uses `defcustom' merely to announce variables that users may
-    ;;   reconfigure. Trouble is it fires off initializers meant to accommodate
-    ;;   any user attempts to configure them *before* they are defined, which
-    ;;   isn't possible since the user's first opportunity to modify them comes
-    ;;   long after they're defined (in $DOOMDIR/init.el), so this is
-    ;;   unnecessary work. To spare Emacs the startup time, I disable this
-    ;;   behavior until $DOOMDIR is loaded.
-    (setq custom-dont-initialize t)
-    (add-hook! 'doom-before-init-hook
-      (defun doom--reset-custom-dont-initialize-h ()
-        (setq custom-dont-initialize nil)))
-    (define-advice command-line-1 (:around (fn args-left) respect-defcustom-setters)
-      (let ((custom-dont-initialize nil))
-        (funcall fn args-left)))
-
     ;; These optimizations are brittle, difficult to debug, and obscure other
     ;; issues, so bow out when debug mode is on.
     (unless init-file-debug