Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

2 files changed, 0 insertions, 102 deletions

diff --git a/src/cgroups-agent/Makefile b/src/cgroups-agent/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/cgroups-agent/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c
deleted file mode 100644
index 7a6173e2a2..0000000000
--- a/src/cgroups-agent/cgroups-agent.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <dbus/dbus.h>
-
-#include <stdlib.h>
-
-#include "log.h"
-#include "dbus-common.h"
-
-int main(int argc, char *argv[]) {
-        DBusError error;
-        DBusConnection *bus = NULL;
-        DBusMessage *m = NULL;
-        int r = EXIT_FAILURE;
-
-        dbus_error_init(&error);
-
-        if (argc != 2) {
-                log_error("Incorrect number of arguments.");
-                goto finish;
-        }
-
-        log_set_target(LOG_TARGET_AUTO);
-        log_parse_environment();
-        log_open();
-
-        /* We send this event to the private D-Bus socket and then the
-         * system instance will forward this to the system bus. We do
-         * this to avoid an activation loop when we start dbus when we
-         * are called when the dbus service is shut down. */
-
-        if (!(bus = dbus_connection_open_private("unix:path=/run/systemd/private", &error))) {
-#ifndef LEGACY
-                dbus_error_free(&error);
-
-                /* Retry with the pre v21 socket name, to ease upgrades */
-                if (!(bus = dbus_connection_open_private("unix:abstract=/org/freedesktop/systemd1/private", &error))) {
-#endif
-                        log_error("Failed to get D-Bus connection: %s", bus_error_message(&error));
-                        goto finish;
-                }
-#ifndef LEGACY
-        }
-#endif
-
-        if (bus_check_peercred(bus) < 0) {
-                log_error("Bus owner not root.");
-                goto finish;
-        }
-
-        if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1/agent", "org.freedesktop.systemd1.Agent", "Released"))) {
-                log_error("Could not allocate signal message.");
-                goto finish;
-        }
-
-        if (!dbus_message_append_args(m,
-                                      DBUS_TYPE_STRING, &argv[1],
-                                      DBUS_TYPE_INVALID)) {
-                log_error("Could not attach group information to signal message.");
-                goto finish;
-        }
-
-        if (!dbus_connection_send(bus, m, NULL)) {
-                log_error("Failed to send signal message on private connection.");
-                goto finish;
-        }
-
-        r = EXIT_SUCCESS;
-
-finish:
-        if (bus) {
-                dbus_connection_flush(bus);
-                dbus_connection_close(bus);
-                dbus_connection_unref(bus);
-        }
-
-        if (m)
-                dbus_message_unref(m);
-
-        dbus_error_free(&error);
-        return r;
-}