Do not call to `selected-frame' where it is assumed by default.

Do not call to `selected-frame' where it is assumed by default.
Affected functions are `raise-frame', `redraw-frame',
`frame-first-window', `frame-terminal' and `delete-frame'.
* lisp/calendar/appt.el (appt-disp-window):
* lisp/epg.el (epg-wait-for-completion):
* lisp/follow.el (follow-delete-other-windows-and-split)
(follow-avoid-tail-recenter):
* lisp/international/mule.el (set-terminal-coding-system):
* lisp/mail/rmail.el (rmail-mail-return):
* lisp/net/newst-plainview.el (newsticker--buffer-set-uptodate):
* lisp/progmodes/f90.el (f90-add-imenu-menu):
* lisp/progmodes/idlw-toolbar.el (idlwave-toolbar-toggle):
* lisp/server.el (server-switch-buffer):
* lisp/simple.el (delete-completion-window):
* lisp/talk.el (talk):
* lisp/term/xterm.el (terminal-init-xterm-modify-other-keys)
(xterm-turn-on-modify-other-keys, xterm-remove-modify-other-keys):
* lisp/vc/ediff-util.el (ediff-status-info, ediff-show-diff-output):
* lisp/vc/ediff.el (ediff-documentation): Related users changed.
* lisp/frame.el (selected-terminal): Remove the leftover.