Remove some XEmacs compat code from org-mode

* lisp/org/ol-eww.el (org-eww-copy-for-org-mode):
* lisp/org/ol-w3m.el (org-w3m-copy-for-org-mode):
* lisp/org/org-refile.el (org-refile):
* lisp/org/org.el (org-change-tag-in-region): Remove XEmacs compat
code.

lisp/org/ol-eww.el

@@ -115,7 +115,7 @@ keep the structure of the Org file."
       (setq transform-start (region-beginning))
       (setq transform-end (region-end))
       ;; Deactivate mark if current mark is activate.
-      (when (fboundp 'deactivate-mark) (deactivate-mark)))
+      (deactivate-mark))
     (message "Transforming links...")
     (save-excursion
       (goto-char transform-start)

lisp/org/ol-w3m.el

@@ -72,7 +72,7 @@ so that it can be yanked into an Org  buffer with links working correctly."
       (setq transform-start (region-beginning))
       (setq transform-end (region-end))
       ;; Deactivate mark if current mark is activate.
-      (when (fboundp 'deactivate-mark) (deactivate-mark)))
+      (deactivate-mark))
     (message "Transforming links...")
     (save-excursion
       (goto-char transform-start)

lisp/org/org-refile.el

@@ -577,7 +577,7 @@ prefix argument (`C-u C-u C-u C-c C-w')."
 		     (with-demoted-errors "Bookmark set error: %S"
 		       (bookmark-set bookmark-name))))
 		 (move-marker org-capture-last-stored-marker (point)))
-	       (when (fboundp 'deactivate-mark) (deactivate-mark))
+               (deactivate-mark)
 	       (run-hooks 'org-after-refile-insert-hook)))
 	    (unless org-refile-keep
 	      (if regionp

lisp/org/org.el

@@ -12160,7 +12160,7 @@ This works in the agenda, and also in an Org buffer."
 	 (progn
 	   (message "[s]et or [r]emove? ")
 	   (equal (read-char-exclusive) ?r))))
-  (when (fboundp 'deactivate-mark) (deactivate-mark))
+  (deactivate-mark)
   (let ((agendap (equal major-mode 'org-agenda-mode))
 	l1 l2 m buf pos newhead (cnt 0))
     (goto-char end)