gnus-sum.el: Remove long obsoleted functions.

lisp/gnus/ChangeLog

+2010-10-12  Lars Magne Ingebrigtsen  <larsi@gnus.org>
+
+	* gnus-sum.el (gnus-summary-mark-as-unread-forward)
+	(gnus-summary-mark-as-unread-backward, gnus-summary-mark-as-unread):
+	Remove long obsoleted functions.
+
 2010-10-11  Katsumi Yamaoka  <yamaoka@jpl.org>
 	* nnimap.el (gnutls-negotiate): Silence the byte compiler.

lisp/gnus/gnus-kill.el

@@ -480,7 +480,7 @@ Returns the number of articles marked as read."
 	 (or (cdr (assq modifier mod-to-header)) "subject")
 	 pattern
 	 (if (string-match "m" commands)
-	     '(gnus-summary-mark-as-unread nil " ")
+	     '(gnus-summary-tick-article nil " ")
 	   '(gnus-summary-mark-as-read nil "X"))
 	 nil t))
       (forward-line 1))))

lisp/gnus/gnus-sum.el

@@ -10853,10 +10853,6 @@ If NO-EXPIRE, auto-expiry will be inhibited."
       (gnus-alist-pull article gnus-newsgroup-reads)
       t)))
 
-(defalias 'gnus-summary-mark-as-unread-forward
-  'gnus-summary-tick-article-forward)
-(make-obsolete 'gnus-summary-mark-as-unread-forward
-	       'gnus-summary-tick-article-forward "Emacs 20.4")
 (defun gnus-summary-tick-article-forward (n)
   "Tick N articles forwards.
 If N is negative, tick backwards instead.
@@ -10864,18 +10860,12 @@ The difference between N and the number of articles ticked is returned."
   (interactive "p")
   (gnus-summary-mark-forward n gnus-ticked-mark))
 
-(defalias 'gnus-summary-mark-as-unread-backward
-  'gnus-summary-tick-article-backward)
-(make-obsolete 'gnus-summary-mark-as-unread-backward
-	       'gnus-summary-tick-article-backward "Emacs 20.4")
 (defun gnus-summary-tick-article-backward (n)
   "Tick N articles backwards.
 The difference between N and the number of articles ticked is returned."
   (interactive "p")
   (gnus-summary-mark-forward (- n) gnus-ticked-mark))
 
-(defalias 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
-(make-obsolete 'gnus-summary-mark-as-unread 'gnus-summary-tick-article "Emacs 20.4")
 (defun gnus-summary-tick-article (&optional article clear-mark)
   "Mark current article as unread.
 Optional 1st argument ARTICLE specifies article number to be marked as unread.