(Viewing Info files outside of Emacs): Xinfo is no more.

(Viewing Info files outside of Emacs): Xinfo is no more.
(Help installing Emacs): Remove reference to deleted X11 node.
(Associating modes with files): Interpreter-mode-alist is no longer
subservient to auto-mode-alist.
(Installing Emacs): Change future Emacs version.
(Linking with -lX11 fails): Remove old section.
(Packages that do not come with Emacs): Update ELL location.
Emacs Lisp archive is dead.
(Emacs for Windows): Remove reference to old CE port.
(Emacs for OS/2, Emacs for Atari ST, Emacs for the Amiga ):
Remove old ports.
(Emacs for GNUstep): Rename from "Emacs for NeXTSTEP" and update.
(Removing flashing messages): Remove section about non-existent Gnus option.