updating "Maintainers:" lines to reflect retirements

[Paul Eggert <eggert@cs.ucla.edu>]

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I looked at the Emacs source code and came up with a proposed list of 
"Maintainer:" lines that are obsolete, in the sense that the corresponding 
people have retired from contributing to Emacs. So I propose that we remove 
these "Maintainer:" lines and let the files' maintainership revert back to the 
files' authors, or replace the lines with "Maintainer: emacs-devel@gnu.org" (I 
don't much care which). Please see the attached proposed list of retired 
maintainers and their corresponding files.

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Kenichi Handa <handa@gnu.org>
	lisp/international/quail.el
	lisp/language/indian.el
	lisp/ps-print.el
	lisp/ps-samp.el

Simon Josefsson <simon@josefsson.org> and Brian D. Carlstrom <bdc@ai.mit.edu>
	lisp/mail/smtpmail.el

KAWABATA, Taichi <kawabata@m17n.org>
	lisp/language/ind-util.el
	lisp/language/indian.el

Bill Perry <wmperry@gnu.org>
	lisp/mwheel.el

JD Smith <jd.smith@utoledo.edu>
	lisp/progmodes/idlw-complete-structtag.el
	lisp/progmodes/idlw-help.el
	lisp/progmodes/idlw-shell.el
	lisp/progmodes/idlw-toolbar.el
	lisp/progmodes/idlwave.el

Chong Yidong <cyd@stupidchicken.com>
	lisp/obsolete/longlines.el

simula-mode@ifi.uio.no
	lisp/progmodes/simula.el