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, 61 deletions

diff --git a/src/readahead/readahead-common.h b/src/readahead/readahead-common.h
deleted file mode 100644
index b34f3aadd7..0000000000
--- a/src/readahead/readahead-common.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-#pragma once
-
-/***
-  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/stat.h>
-#include <sys/types.h>
-
-#include "macro.h"
-#include "util.h"
-
-#define READAHEAD_FILE_SIZE_MAX (10*1024*1024)
-
-#define READAHEAD_PACK_FILE_VERSION ";VERSION=2\n"
-
-extern unsigned arg_files_max;
-extern off_t arg_file_size_max;
-extern usec_t arg_timeout;
-
-int file_verify(int fd, const char *fn, off_t file_size_max, struct stat *st);
-
-int fs_on_ssd(const char *p);
-int fs_on_read_only(const char *p);
-
-bool enough_ram(void);
-
-int open_inotify(void);
-
-typedef struct ReadaheadShared {
-        pid_t collect;
-        pid_t replay;
-} _packed_ ReadaheadShared;
-
-ReadaheadShared *shared_get(void);
-
-int block_bump_request_nr(const char *p);
-
-int block_get_readahead(const char *p, uint64_t *bytes);
-int block_set_readahead(const char *p, uint64_t bytes);
-
-int main_collect(const char *root);
-int main_replay(const char *root);
-int main_analyze(const char *pack_path);