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, 57 deletions

diff --git a/src/shared/ratelimit.c b/src/shared/ratelimit.c
deleted file mode 100644
index 1054d52f97..0000000000
--- a/src/shared/ratelimit.c
+++ /dev/null
@@ -1,57 +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 <assert.h>
-
-#include "ratelimit.h"
-#include "log.h"
-
-/* Modelled after Linux' lib/ratelimit.c by Dave Young
- * <hidave.darkstar@gmail.com>, which is licensed GPLv2. */
-
-bool ratelimit_test(RateLimit *r) {
-        usec_t ts;
-
-        assert(r);
-
-        if (r->interval <= 0 || r->burst <= 0)
-                return true;
-
-        ts = now(CLOCK_MONOTONIC);
-
-        if (r->begin <= 0 ||
-            r->begin + r->interval < ts) {
-                r->begin = ts;
-
-                /* Reset counter */
-                r->num = 0;
-                goto good;
-        }
-
-        if (r->num <= r->burst)
-                goto good;
-
-        return false;
-
-good:
-        r->num++;
-        return true;
-}