fix(cli): don't load subdirs.el again

Doom loaded subdirs.el's in `load-path`, but doesn't need to. This
normally wasn't an issue because subdirs.el files are typically
idempotent, but there is one case where it isn't: on nixpkgs, with
certain configurations on top of programs.emacs (see
NixOS/nixpkgs#267548), which will cause file-missing errors trying to
load the user's site-lisp afterwards (see #7681).

Ref: NixOS/nixpkgs#267548
Fix: #7681
Amend: 6c0b7e1

lisp/doom-cli.el

@@ -30,20 +30,9 @@
  ;; information to the user, like deprecation notices, file-loaded messages,
  ;; and linter warnings. With this, that output is suppressed.
  (quiet!
- (require 'cl nil t)
- (unless site-run-file
- (let ((site-run-file "site-start")
- (tail load-path)
- (lispdir (expand-file-name "../lisp" data-directory))
- dir)
- (while tail
- (setq dir (car tail))
- (let ((default-directory dir))
- (load (expand-file-name "subdirs.el") t inhibit-message t))
- (unless (string-prefix-p lispdir dir)
- (let ((default-directory dir))
- (load (expand-file-name "leim-list.el") t inhibit-message t)))
- (setq tail (cdr tail)))
+ (require 'cl nil t) ; "Package cl is deprecated"
+ (unless site-run-file ; unset in doom.el
+ (when-let ((site-run-file (get 'site-run-file 'initial-value)))
  (load site-run-file t inhibit-message))))
 
  (setq-default