* wl-vars.el (wl-summary-update-confirm-threshold): Abolished.

* wl-vars.el (wl-summary-update-confirm-threshold): Abolished.
(wl-fetch-confirm-threshold): Ditto.

* wl-summary.el (wl-summary-confirm-appends): Removed.
(wl-summary-sync-update): Don't refer
`wl-summary-update-confirm-threshold' (It is now abolished).

* wl-message.el (wl-message-display-internal): Don't refer
`wl-fetch-confirm-threshold' (It is now abolished).

* elmo.el (elmo-folder-confirm-appends): Changed message.
(elmo-folder-confirm-appends): Ditto.

* elmo-archive.el (elmo-archive-exec-msgs-subr1): Use
`with-temp-buffer'.
(According to the advise from Nishimoto Masaki <nishimoto@gaju.org>)