(iswitchb-read-buffer): Fix declaration.

(iswitchb-mode, remember, remember-buffer-desc)
(remember-finalize, remember-save-after-remembering, remember-register)
(remember-buffer, remember-handler-functions)
(remember-annotation-functions): Remove unused declarations.

lisp/org/org.el

@@ -2916,8 +2916,8 @@ Normal means, no org-mode-specific context."
 (declare-function cdlatex-tab "ext:cdlatex" ())
 (declare-function dired-get-filename "dired" (&optional localp no-error-if-not-filep))
 (defvar font-lock-unfontify-region-function)
-(declare-function iswitchb-mode "iswitchb" (&optional arg))
-(declare-function iswitchb-read-buffer (prompt &optional default require-match start matches-set))
+(declare-function iswitchb-read-buffer "iswitchb"
+                  (prompt &optional default require-match start matches-set))
 (defvar iswitchb-temp-buflist)
 (declare-function org-gnus-follow-link "org-gnus" (&optional group article))
 (defvar org-agenda-tags-todo-honor-ignore-options)
@@ -2937,15 +2937,7 @@ Normal means, no org-mode-specific context."
 (declare-function org-inlinetask-remove-END-maybe "org-inlinetask" ())
 (declare-function org-indent-mode "org-indent" (&optional arg))
 (declare-function parse-time-string "parse-time" (string))
-(declare-function remember "remember" (&optional initial))
-(declare-function remember-buffer-desc "remember" ())
-(declare-function remember-finalize "remember" ())
-(defvar remember-save-after-remembering)
 (defvar remember-data-file)
-(defvar remember-register)
-(defvar remember-buffer)
-(defvar remember-handler-functions)
-(defvar remember-annotation-functions)
 (defvar texmathp-why)
 (declare-function speedbar-line-directory "speedbar" (&optional depth))
 (declare-function table--at-cell-p "table" (position &optional object at-column))