delete my find file function in dired

emacs.el

@@ -1393,9 +1393,10 @@ otherwise, use `pack-default-extension' for pack."
             (define-key dired-mode-map "a" 'my-dired-display-all-mode)
             (define-key dired-mode-map "h" 'my-dired-display-all-mode)
             (define-key dired-mode-map "/" 'dired-isearch-filenames)
-            (substitute-key-definition 'dired-advertised-find-file 'my-dired-find-file dired-mode-map)
-            (substitute-key-definition 'dired-up-directory 'my-dired-up-directory dired-mode-map)
-            (define-key dired-mode-map (kbd "DEL") 'my-dired-up-directory)
+            ;; (substitute-key-definition 'dired-advertised-find-file 'my-dired-find-file dired-mode-map)
+            ;; (substitute-key-definition 'dired-up-directory 'my-dired-up-directory dired-mode-map)
+            ;; (define-key dired-mode-map (kbd "DEL") 'my-dired-up-directory)
+            (define-key dired-mode-map (kbd "DEL") 'dired-up-directory)
             (substitute-key-definition 'dired-next-line 'my-dired-next-line dired-mode-map)
             (substitute-key-definition 'dired-previous-line 'my-dired-previous-line dired-mode-map)
             (define-key dired-mode-map (kbd "<left>") 'my-dired-scroll-up)