[emacs] Use 'previous-error for `]e' keybinding

* emacs.d/emacs.org: Replace custom negative-argument 'next-error with
  'previous-error for `]e` evil binding (I'm not sure when it was
  introduced, or if I just completely missed it to begin with since flyspell
  doesn't offer a previous).

emacs.d/emacs.org

@@ -484,10 +484,7 @@ provided for convenience.
 #+BEGIN_SRC emacs-lisp
   (evil-define-key 'normal global-map
     "]e" 'next-error
-    "[e" (lambda (&optional arg reset)
-           (interactive "P")
-           (next-error (- (prefix-numeric-value arg))
-                       reset)))
+    "[e" 'previous-error)
 #+END_SRC
 
 *** Spell Checking