diff --git a/lisp/subr.el b/lisp/subr.el
index 74c8968fc1c..d5260e67d84 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -335,21 +335,6 @@ POSITION should be a list of the form
 nas returned by the `event-start' and `event-end' functions."
   (nth 3 position))
 
-
-;;;; Overlay dissection functions.
-
-(defsubst overlay-start (overlay)
-  "Return the position at which OVERLAY starts."
-  (marker-position (car (car overlay))))
-
-(defsubst overlay-end (overlay)
-  "Return the position at which OVERLAY ends."
-  (marker-position (cdr (car overlay))))
-
-(defsubst overlay-buffer (overlay)
-  "Return the buffer OVERLAY belongs to."
-  (marker-buffer (overlay-start overlay)))
-
 
 ;;;; Obsolescent names for functions.