Remove no more needed bindings of split-height-threshold.

* dired.el (dired-mark-pop-up):
* register.el (register-preview): Don't bind
split-height-threshold here since it's now done in
display-buffer-below-selected.

lisp/ChangeLog

+2013-12-17  Martin Rudalics  <rudalics@gmx.at>
+
+	* dired.el (dired-mark-pop-up):
+	* register.el (register-preview): Don't bind
+	split-height-threshold here since it's now done in
+	display-buffer-below-selected.
+
 2013-12-17  oblique  <psyberbits@gmail.com>  (tiny change)
 
 	* term/rxvt.el (rxvt-rgb-convert-to-16bit): Standardize with

lisp/dired.el

@@ -3079,24 +3079,23 @@ argument or confirmation)."
       (apply function args)
     (let ((buffer (get-buffer-create (or buffer-or-name " *Marked Files*"))))
       (with-current-buffer buffer
-	(let ((split-height-threshold 0))
-	  (with-temp-buffer-window
-	   buffer
-	   (cons 'display-buffer-below-selected
-		 '((window-height . fit-window-to-buffer)))
-	   #'(lambda (window _value)
-	       (with-selected-window window
-		 (unwind-protect
-		     (apply function args)
-		   (when (window-live-p window)
-		     (quit-restore-window window 'kill)))))
-	   ;; Handle (t FILE) just like (FILE), here.  That value is
-	   ;; used (only in some cases), to mean just one file that was
-	   ;; marked, rather than the current line file.
-	   (dired-format-columns-of-files
-	    (if (eq (car files) t) (cdr files) files))
-	   (remove-text-properties (point-min) (point-max)
-				   '(mouse-face nil help-echo nil))))))))
+	(with-temp-buffer-window
+	 buffer
+	 (cons 'display-buffer-below-selected
+	       '((window-height . fit-window-to-buffer)))
+	 #'(lambda (window _value)
+	     (with-selected-window window
+	       (unwind-protect
+		   (apply function args)
+		 (when (window-live-p window)
+		   (quit-restore-window window 'kill)))))
+	 ;; Handle (t FILE) just like (FILE), here.  That value is
+	 ;; used (only in some cases), to mean just one file that was
+	 ;; marked, rather than the current line file.
+	 (dired-format-columns-of-files
+	  (if (eq (car files) t) (cdr files) files))
+	 (remove-text-properties (point-min) (point-max)
+				 '(mouse-face nil help-echo nil)))))))
 
 (defun dired-format-columns-of-files (files)
   (let ((beg (point)))

lisp/register.el

@@ -122,22 +122,21 @@ See the documentation of the variable `register-alist' for possible VALUEs."
   "Pop up a window to show register preview in BUFFER.
 If SHOW-EMPTY is non-nil show the window even if no registers."
   (when (or show-empty (consp register-alist))
-    (let ((split-height-threshold 0))
-      (with-temp-buffer-window
-       buffer
-       (cons 'display-buffer-below-selected
-	     '((window-height . fit-window-to-buffer)))
-       nil
-       (with-current-buffer standard-output
-	 (setq cursor-in-non-selected-windows nil)
-	 (mapc
-	  (lambda (r)
-	    (insert (or (run-hook-with-args-until-success
-			 'register-preview-functions r)
-			(format "%s %s\n"
-				(concat (single-key-description (car r)) ":")
-				(register-describe-oneline (car r))))))
-	  register-alist))))))
+    (with-temp-buffer-window
+     buffer
+     (cons 'display-buffer-below-selected
+	   '((window-height . fit-window-to-buffer)))
+     nil
+     (with-current-buffer standard-output
+       (setq cursor-in-non-selected-windows nil)
+       (mapc
+	(lambda (r)
+	  (insert (or (run-hook-with-args-until-success
+		       'register-preview-functions r)
+		      (format "%s %s\n"
+			      (concat (single-key-description (car r)) ":")
+			      (register-describe-oneline (car r))))))
+	register-alist)))))
 
 (defun register-read-with-preview (prompt)
   "Read an event with register preview using PROMPT.