[nautilus] docs: remove outdated documentation

[Ernestas Kulik <ernestask src gnome org>]

commit 033378c418b32af5280f855b206a34bf0a3e148a
Author: Ernestas Kulik <ernestask gnome org>
Date:   Wed Mar 22 14:31:51 2017 +0200

    docs: remove outdated documentation
    
    Most documentation is outdated and/or incomplete with no maintainers.
    This commit removes it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=780366

 docs/architecture.txt         |  160 ------------
 docs/dnd.txt                  |   92 -------
 docs/key_mouse_navigation.txt |  112 ---------
 docs/load-states.dia          |  Bin 2026 -> 0 bytes
 docs/nautilus-internals.pdf   |  Bin 307912 -> 0 bytes
 docs/nautilus-internals.sxw   |  Bin 59286 -> 0 bytes
 docs/nautilus-io.txt          |  255 -------------------
 docs/nautilus.faq             |    7 -
 docs/recommended-books.html   |  167 ------------
 docs/smoketests.html          |  555 -----------------------------------------
 docs/state-machines.txt       |   77 ------
 docs/style-guide.html         |  137 ----------
 12 files changed, 0 insertions(+), 1562 deletions(-)