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>

1 files changed, 0 insertions, 67 deletions

diff --git a/src/shared/spawn-ask-password-agent.c b/src/shared/spawn-ask-password-agent.c
deleted file mode 100644
index c1a9c58681..0000000000
--- a/src/shared/spawn-ask-password-agent.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2011 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/types.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/prctl.h>
-#include <signal.h>
-#include <fcntl.h>
-
-#include "log.h"
-#include "util.h"
-#include "spawn-ask-password-agent.h"
-
-static pid_t agent_pid = 0;
-
-int ask_password_agent_open(void) {
-        int r;
-
-        if (agent_pid > 0)
-                return 0;
-
-        /* We check STDIN here, not STDOUT, since this is about input,
-         * not output */
-        if (!isatty(STDIN_FILENO))
-                return 0;
-
-        r = fork_agent(&agent_pid,
-                       NULL, 0,
-                       SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
-                       SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
-        if (r < 0)
-                log_error("Failed to fork TTY ask password agent: %s", strerror(-r));
-
-        return r;
-}
-
-void ask_password_agent_close(void) {
-
-        if (agent_pid <= 0)
-                return;
-
-        /* Inform agent that we are done */
-        kill(agent_pid, SIGTERM);
-        kill(agent_pid, SIGCONT);
-        wait_for_terminate(agent_pid, NULL);
-        agent_pid = 0;
-}