* elmo.el (elmo-folder-move-messages): Removed unused arguments.

* elmo.el (elmo-folder-move-messages): Removed unused arguments.

* elmo-pipe.el (elmo-pipe-drain): Follow the change above.

* wl-summary.el (wl-summary-buffer-msgdb): Abolish.

* wl-expire.el (wl-expire-refile): Follow the API change on
`elmo-folder-move-messages'.
(wl-expire-refile-with-copy-reserve-msg): Ditto.

* wl-action.el (wl-summary-move-mark-list-messages): Ditto.
(wl-summary-exec-action-refile): Ditto.
(wl-summary-exec-action-copy): Ditto.
(wl-summary-no-auto-refile-message-p): No use
`wl-summary-buffer-msgdb'.
(wl-summary-auto-refile): Ditto.