Revert use window-end directly

Author: jcs090218

line-reminder.el

@@ -210,9 +210,7 @@ See macro `with-selected-window' description for arguments WINDOW and BODY."
 
 (defun line-reminder--walk-window-lines (callback)
   "Walk through display window lines and execute CALLBACK on each line."
-  (let ((wend (or (window-parameter nil 'window-end)
-                  (set-window-parameter nil 'window-end
-                                        (window-end nil t))))
+  (let ((wend   (window-end nil t))
         (wstart (window-start))
         (line)
         (break))
@@ -387,7 +385,6 @@ Argument LINE is passed in by `linum-format' variable."
   (ht-clear line-reminder--line-status)
   (add-hook 'before-change-functions #'line-reminder--before-change nil t)
   (add-hook 'after-change-functions #'line-reminder--after-change -95 t)
-  (add-hook 'pre-command-hook #'line-reminder--pre-command nil t)
   (add-hook 'post-command-hook #'line-reminder--post-command nil t)
   ;; XXX: We add advice to `save-buffer', but we never need to remove it since
   ;; we have checked `line-reminder-mode' inside `line-reminder--save-buffer'
@@ -403,7 +400,6 @@ Argument LINE is passed in by `linum-format' variable."
   "Disable `line-reminder' in current buffer."
   (remove-hook 'before-change-functions #'line-reminder--before-change t)
   (remove-hook 'after-change-functions #'line-reminder--after-change t)
-  (remove-hook 'pre-command-hook #'line-reminder--pre-command t)
   (remove-hook 'post-command-hook #'line-reminder--post-command t)
   (line-reminder-clear-reminder-lines-sign)
   ;; XXX: Don't use local for these hooks/functions, without the local flag
@@ -584,10 +580,6 @@ and END."
     (line-reminder--thumb-render-buffer)
     (setq line-reminder--render-this-command-p nil)))
 
-(defun line-reminder--pre-command ()
-  "Pre command."
-  (set-window-parameter nil 'window-end nil))
-
 (defun line-reminder--post-command ()
   "Post command."
   (line-reminder--render-post-command)