remove NEED_EVENTS/NEED_REPLIES

Remove defines of NEED_EVENTS and NEED_REPLIES because they are never
used anywhere.

Basically these three commits, but as they are newer and to not match
the code structure the patches have not been applied but replaced by
sed + manual intervention:

   From cb95642dc8edebb2935dd471f8b339cb98aa8481 Mon Sep 17 00:00:00 2001
   From: Peter Hutterer <peter.hutterer@redhat.com>
   Date: Fri, 28 Nov 2008 22:28:32 +1000
   Subject: Remove #define NEED_EVENTS and NEED_REPLIES

   A grep on xorg/* revealed there's no consumer of this define.

   Quote Alan Coopersmith:
   "The consumer was in past versions of the headers now located
   in proto/x11proto - for instance, in X11R6.0's xc/include/Xproto.h,
   all the event definitions were only available if NEED_EVENTS were
   defined, and all the reply definitions required NEED_REPLIES.

   Looks like Xproto.h dropped them by X11R6.3, which didn't have
   the #ifdef's anymore, so these are truly ancient now."
Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>

--

   From 6de368c9aa7ccd2fcd62fca5a2b278913db4d03d Mon Sep 17 00:00:00 2001
   From: Fernando Carrijo <fcarrijo@yahoo.com.br>
   Date: Thu, 1 Jul 2010 06:50:47 -0300
   Subject: Purge macros NEED_EVENTS and NEED_REPLIES
Signed-off-by: Fernando Carrijo <fcarrijo@yahoo.com.br>
Acked-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>

--

   From 57c03e52e6b4e3ed54df5fdd778865467d08e119 Mon Sep 17 00:00:00 2001
   From: Fernando Carrijo <fcarrijo@yahoo.com.br>
   Date: Thu, 1 Jul 2010 06:59:48 -0300
   Subject: Purge macro NEED_EVENTS
Signed-off-by: Fernando Carrijo <fcarrijo@yahoo.com.br>
Acked-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>

debian/nxproxy.docs: Fix FTBFS due to missing documentation files (moved out of the way with recent commits).

Attributes GH PR #178: https://github.com/ArcticaProject/nx-libs/pull/178
Reviewed by: Vadim Troshchinskiy <vadim@qindel.com> --  Tue, 05 Jul 2016 02:37:08 -0700

 Casting return to (void) was used to tell lint that you intended
 to ignore the return value, so it didn't warn you about it.

 Casting the third argument to (char *) was used as the most generic
 pointer type in the days before compilers supported C89 (void *)
 (except for a couple places it's used for byte-sized pointer math).
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
 Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

 Enough with the casting.  Doesn't break API or even ABI, but does make
 a lot of silly casts superfluos.

Xserver.man: Drop original and old Xserver man page. Relevant parts have now been added to nxagent.1 man page.

 Drop other LICENSE files added by NoMachine scattered all over the code tree.

 One COPYING file in the project's base folder is sufficient.

doc/_attic_/: Introduce an "_attic_" folder. Move diffs between NoMachine's nx-X11 3.5 and X.org 6.9 here.

Attributes GH PR #181: https://github.com/ArcticaProject/nx-libs/pull/181
Self-reviewed: Mike Gabriel <mike.gabriel@das-netzwerkteam.de> --  Tue, 05 Jul 2016 10:08:48 +0200

  libNX_Xcomposite1 < 3.5.99.1
  libNX_Xcomposite1%{?_isa} < 3.5.99.1
  libNX_Xdamage1 < 3.5.99.1
  libNX_Xdamage1%{?_isa} < 3.5.99.1
  libNX_Xdmcp6 < 3.5.99.1
  libNX_Xdmcp6%{?_isa} < 3.5.99.1
  libNX_Xext6 < 3.5.99.1
  libNX_Xext6%{?_isa} < 3.5.99.1
  libNX_Xfixes3 < 3.5.99.1
  libNX_Xfixes3%{?_isa} < 3.5.99.1
  libNX_Xinerama1 < 3.5.99.1
  libNX_Xinerama1%{?_isa} < 3.5.99.1
  libNX_Xpm4 < 3.5.99.1
  libNX_Xpm4%{?_isa} < 3.5.99.1
  libNX_Xrandr2 < 3.5.99.1
  libNX_Xrandr2%{?_isa} < 3.5.99.1
  libNX_Xrender1 < 3.5.99.1
  libNX_Xrender1%{?_isa} < 3.5.99.1
  libNX_Xtst6 < 3.5.99.1
  libNX_Xtst6%{?_isa} < 3.5.99.1

 Fixes ArcticaProject/nx-libs#70.

nx-libs.spec: Let libNX_X11-6 and libNX_X11-devel conflict with deprecated libXau6 and libXau-devel.

  - Inject LIBDIR rather than USRLIBDIR into nx-libs's main Makefile
  - Install include files Xauth.h into libNX_X11-devel.
  - Install hi-jacking libX11 library symlinks.
  - Install VERSION.nx* files into nxagent / nxproxy packages.

debian/control: Add some hard and exact-versioned dependencies for our bin:packages. Assure that no old share lib packages with the same set of symbols remain on the system when upgrading.

Attributes GH PR #177: https://github.com/ArcticaProject/nx-libs/pull/177
Reviewed by: Vadim Troshchinskiy <vadim@qindel.com> --  Tue, 05 Jul 2016 00:02:17 -0700

 TryClientEvents already did this; this commit just moves the assignment
 one level down so that no event source has to worry about sequence
 numbers.

 ...No event source, that is, except XKB, which inexplicably calls
 WriteToClient directly for several events.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
 Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

 This matches the test in TryClientEvents, and is a superset of tests
 done by the callers of these functions. The consequence of forgetting
 these tests is a server crash, so they're always desirable. In my
 opinion, it's better to not require the callers to remember to do these
 checks.

 For callers that don't do very much work before calling WriteToClient or
 WriteEventsToClient, I've removed the redundant checks.

 Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=27497Signed-off-by: Jamey Sharp <jamey@minilop.net>
 Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
 Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Attributes GH PR #168: https://github.com/ArcticaProject/nx-libs/pull/168
Reviewed by: Vadim Troshchinskiy <vadim@qindel.com> --  Mon, 04 Jul 2016 11:15:20 -0700