Remove retired maintainers from comments

Remove retired maintainers from comments

* lisp/international/quail.el, lisp/language/ind-util.el:
* lisp/language/indian.el, lisp/mail/smtpmail.el, lisp/mwheel.el:
* lisp/obsolete/longlines.el, 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:
* lisp/progmodes/simula.el, lisp/ps-print.el, lisp/ps-samp.el:
Remove Maintainer: lines for maintainers who have retired.