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, 110 deletions

diff --git a/src/reply-password/Makefile b/src/reply-password/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/reply-password/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/reply-password/reply-password.c b/src/reply-password/reply-password.c
deleted file mode 100644
index a935d0f084..0000000000
--- a/src/reply-password/reply-password.c
+++ /dev/null
@@ -1,109 +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 <sys/socket.h>
-#include <sys/poll.h>
-#include <sys/types.h>
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/un.h>
-#include <sys/stat.h>
-#include <sys/signalfd.h>
-#include <getopt.h>
-#include <stddef.h>
-
-#include "log.h"
-#include "macro.h"
-#include "util.h"
-
-static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) {
-        union {
-                struct sockaddr sa;
-                struct sockaddr_un un;
-        } sa;
-
-        assert(fd >= 0);
-        assert(socket_name);
-        assert(packet);
-
-        zero(sa);
-        sa.un.sun_family = AF_UNIX;
-        strncpy(sa.un.sun_path, socket_name, sizeof(sa.un.sun_path));
-
-        if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(socket_name)) < 0) {
-                log_error("Failed to send: %m");
-                return -1;
-        }
-
-        return 0;
-}
-
-int main(int argc, char *argv[]) {
-        int fd = -1, r = EXIT_FAILURE;
-        char packet[LINE_MAX];
-        size_t length;
-
-        log_set_target(LOG_TARGET_AUTO);
-        log_parse_environment();
-        log_open();
-
-        if (argc != 3) {
-                log_error("Wrong number of arguments.");
-                goto finish;
-        }
-
-        if (streq(argv[1], "1")) {
-
-                packet[0] = '+';
-                if (!fgets(packet+1, sizeof(packet)-1, stdin)) {
-                        log_error("Failed to read password: %m");
-                        goto finish;
-                }
-
-                truncate_nl(packet+1);
-                length = 1 + strlen(packet+1) + 1;
-        } else if (streq(argv[1], "0")) {
-                packet[0] = '-';
-                length = 1;
-        } else {
-                log_error("Invalid first argument %s", argv[1]);
-                goto finish;
-        }
-
-        if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) {
-                log_error("socket() failed: %m");
-                goto finish;
-        }
-
-        if (send_on_socket(fd, argv[2], packet, length) < 0)
-                goto finish;
-
-        r = EXIT_SUCCESS;
-
-finish:
-        if (fd >= 0)
-                close_nointr_nofail(fd);
-
-        return r;
-}