; Delete not-useful comments referring to Emacs 19.

lisp/emacs-lisp/checkdoc.el

@@ -2232,7 +2232,6 @@ nil."
 	(progn
           (ispell-set-spellchecker-params)    ; Initialize variables and dict alists.
           (ispell-accept-buffer-local-defs)   ; Use the correct dictionary.
-	  ;; This code copied in part from ispell.el Emacs 19.34
 	  (dolist (w checkdoc-ispell-lisp-words)
 	    (process-send-string ispell-process (concat "@" w "\n"))))
       (error (setq checkdoc-spellcheck-documentation-flag nil)))))

lisp/emacs-lisp/edebug.el

@@ -2861,7 +2861,6 @@ See `edebug-behavior-alist' for implementations.")
 	      (this-command this-command)
 	      (current-prefix-arg nil)
 
-	      ;; More for Emacs 19
 	      (last-input-event nil)
 	      (last-command-event nil)
 	      (last-event-frame nil)

lisp/emacs-lisp/elp.el

@@ -111,7 +111,7 @@
 ;; provide the functionality or interface that I wanted, so I wrote
 ;; this.
 
-;; Unlike previous profilers, elp uses Emacs 19's built-in function
+;; Unlike previous profilers, elp uses the built-in function
 ;; current-time to return interval times.  This obviates the need for
 ;; both an external C program and Emacs processes to communicate with
 ;; such a program, and thus simplifies the package as a whole.