diff --git a/lisp/faces.el b/lisp/faces.el
index b2589c5c06a..0418cd4c05f 100644
--- a/lisp/faces.el
+++ b/lisp/faces.el
@@ -2496,15 +2496,9 @@ default."
   "Basic face for highlighting."
   :group 'basic-faces)
 
-;; Region face: under NS, default to the system-defined selection
-;; color (optimized for the fixed white background of other apps),
-;; if background is light.
 (defface region
   '((((class color) (min-colors 88) (background dark))
      :background "blue3" :extend t)
-    (((class color) (min-colors 88) (background light) (type ns))
-     :distant-foreground "ns_selection_fg_color"
-     :background "ns_selection_bg_color" :extend t)
     (((class color) (min-colors 88) (background light))
      :background "lightgoldenrod2" :extend t)
     (((class color) (min-colors 16) (background dark))