Revert "services: Add ddclient service."

ddclient is unmaintained as of 2023-07-04 [1] and this service has been broken
for a while [2]. Remove it rather than shipping a broken service for an
unmaintained program that's unlikely to be fixed.

[1]: <https://github.com/ddclient/ddclient>
[2]: <https://issues.guix.gnu.org/52770>

This reverts commit 8490a8346b5c8207f5798be55bea1de865b0bd42.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 0 insertions, 107 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index e2e61f0f2d..633d62bd98 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -32563,113 +32563,6 @@ network or obtained a DHCP lease from dnsmasq.
 @end table
 @end deftp
 
-@subsubheading ddclient Service
-
-@cindex ddclient
-The ddclient service described below runs the ddclient daemon, which takes
-care of automatically updating DNS entries for service providers such as
-@uref{https://dyn.com/dns/, Dyn}.
-
-The following example show instantiates the service with its default
-configuration:
-
-@lisp
-(service ddclient-service-type)
-@end lisp
-
-Note that ddclient needs to access credentials that are stored in a
-@dfn{secret file}, by default @file{/etc/ddclient/secrets} (see
-@code{secret-file} below).  You are expected to create this file manually, in
-an ``out-of-band'' fashion (you @emph{could} make this file part of the
-service configuration, for instance by using @code{plain-file}, but it will be
-world-readable @i{via} @file{/gnu/store}).  See the examples in the
-@file{share/ddclient} directory of the @code{ddclient} package.
-
-@c %start of fragment
-
-Available @code{ddclient-configuration} fields are:
-
-@deftypevr {@code{ddclient-configuration} parameter} package ddclient
-The ddclient package.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} integer daemon
-The period after which ddclient will retry to check IP and domain name.
-
-Defaults to @samp{300}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} boolean syslog
-Use syslog for the output.
-
-Defaults to @samp{#t}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string mail
-Mail to user.
-
-Defaults to @samp{"root"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string mail-failure
-Mail failed update to user.
-
-Defaults to @samp{"root"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string pid
-The ddclient PID file.
-
-Defaults to @samp{"/var/run/ddclient/ddclient.pid"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} boolean ssl
-Enable SSL support.
-
-Defaults to @samp{#t}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string user
-Specifies the user name or ID that is used when running ddclient
-program.
-
-Defaults to @samp{"ddclient"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string group
-Group of the user who will run the ddclient program.
-
-Defaults to @samp{"ddclient"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} string secret-file
-Secret file which will be appended to @file{ddclient.conf} file.  This
-file contains credentials for use by ddclient.  You are expected to
-create it manually.
-
-Defaults to @samp{"/etc/ddclient/secrets.conf"}.
-
-@end deftypevr
-
-@deftypevr {@code{ddclient-configuration} parameter} list extra-options
-Extra options will be appended to @file{ddclient.conf} file.
-
-Defaults to @samp{'()}.
-
-@end deftypevr
-
-
-@c %end of fragment
-
 @node VNC Services
 @subsection VNC Services
 @cindex VNC (virtual network computing)