xbacklight: Removed as it is useless.

It's uselessness is due to xf86-video-intel not being in the book, which xbacklight relies on. It does not work on most GPUs.

Backlight is now controlled via /sys/class/backlight.

introduction/welcome/changelog.xml

@@ -42,6 +42,9 @@
     <listitem>
       <para>August 22nd, 2024</para>
       <itemizedlist>
+        <listitem>
+          <para>[Zeckmathederg] - xbacklight: Removed as it is useless.</para>
+        </listitem>
         <listitem>
           <para>[Zeckmathederg] - libxml2: Add required patch.</para>
         </listitem>

packages.ent

@@ -160,7 +160,6 @@
 <!ENTITY smproxy-version              "1.0.7">
 <!ENTITY x11perf-version              "1.6.1">
 <!ENTITY xauth-version                "1.1.3">
-<!ENTITY xbacklight-version           "1.2.3">
 <!ENTITY xcmsdb-version               "1.0.6">
 <!ENTITY xcursorgen-version           "1.0.8">
 <!ENTITY xdpyinfo-version             "1.3.4">

shareddeps/dps/x/x7app.xml

@@ -69,7 +69,6 @@ setxkbmap-&setxkbmap-version;.tar.xz
 smproxy-&smproxy-version;.tar.xz
 x11perf-&x11perf-version;.tar.bz2
 xauth-&xauth-version;.tar.xz
-xbacklight-&xbacklight-version;.tar.bz2
 xcmsdb-&xcmsdb-version;.tar.xz
 xcursorgen-&xcursorgen-version;.tar.xz
 xdpyinfo-&xdpyinfo-version;.tar.xz
@@ -186,7 +185,7 @@ done</userinput></screen>
       <seglistitem>
 
         <seg>iceauth, mkfontdir, mkfontscale, sessreg,
-        setxkbmap, smproxy, x11perf, x11perfcomp, xauth, xbacklight,
+        setxkbmap, smproxy, x11perf, x11perfcomp, xauth,
         xcmsdb, xcursorgen, xdpr, xdpyinfo, xdriinfo, xev, xgamma, xhost,
         xinput, xkbbell, xkbcomp, xkbevd, xkbvleds, xkbwatch, xkill,
         xlsatoms, xlsclients, xmessage, xmodmap, xpr, xprop, xrandr, xrdb,
@@ -309,18 +308,6 @@ done</userinput></screen>
         </listitem>
       </varlistentry>
 
-      <varlistentry id="xbacklight-x7">
-        <term><command>xbacklight</command></term>
-        <listitem>
-          <para>
-            adjusts backlight brightness using RandR extension
-          </para>
-          <indexterm zone="xorg7-app xbacklight-x7">
-            <primary sortas="b-xbacklight">xbacklight</primary>
-          </indexterm>
-        </listitem>
-      </varlistentry>
-
       <varlistentry id="xcmsdb-x7">
         <term><command>xcmsdb</command></term>
         <listitem>