Removed the backdoor, because it does not work anymore and it has also become obsolete (Disnix uses something else now)

svn path=/nixos/trunk/; revision=25601

doc/manual/man-nixos-build-vms.xml

@@ -17,7 +17,6 @@
 <refsynopsisdiv>
   <cmdsynopsis>
     <command>nixos-build-vms</command>
-    <arg><option>--use-backdoor</option></arg>
     <arg><option>--show-trace</option></arg>
     <arg><option>--no-out-link</option></arg>
     <arg><option>--help</option></arg>
@@ -34,11 +33,6 @@ this command. By default, a <filename>result</filename> symlink is produced that
 points to the generated virtual network.
 </para>
 
-<para>This command also provides the <option>--use-backdoor</option> option,
-which spawns UNIX domain sockets in the current working directory by using the
-<command>socat</command> command. This allows
-users to remotely script a generated virtual machine.</para>
-
 <para>A network Nix expression has the following structure:
 
 <screen>
@@ -87,15 +81,6 @@ for the same architecture as the host system.
 
 <variablelist>
 
-  <varlistentry>
-    <term><option>--use-backdoor</option></term>
-    <listitem>
-      <para>Indicates that the backdoor must be enabled so that the VMs can be
-      accessed through a UNIX domain socket. The UNIX domain sockets are
-      created in the current working directory.</para>
-    </listitem>
-  </varlistentry>
-
   <varlistentry>
     <term><option>--show-trace</option></term>
     <listitem>