Remove ISDN4BSD (I4B) from HEAD as it is not MPSAFE and

parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.

This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation

Discussed with: rwatson, re

1 files changed, 0 insertions, 71 deletions

diff --git a/usr.sbin/i4b/man/ihfc.4 b/usr.sbin/i4b/man/ihfc.4
deleted file mode 100644
index 4d91391..0000000
--- a/usr.sbin/i4b/man/ihfc.4
+++ /dev/null
@@ -1,71 +0,0 @@
-.\"
-.\" Copyright (c) 2000, 2002 Hellmuth Michaelis. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.\"	last edit-date: [Sun Jul 28 16:47:55 2002]
-.\"
-.Dd July 28, 2002
-.Dt IHFC 4
-.Os
-.Sh NAME
-.Nm ihfc
-.Nd isdn4bsd ISA Cologne Chip HFC[-S][-SP] 2B[DS0] driver
-.Sh SYNOPSIS
-.Cd "device ihfc"
-.Pp
-NOTE:
-.Pp
-Something like:
-.Li hint.ihfc.0.at="isa"
-must be added to
-.Pa /boot/device.hints
-The driver will automatically probe for io-base and irq.
-.Sh DESCRIPTION
-The
-.Nm
-driver provides D-channel layer 1 supports as specified in ITU Recommendation
-I.430 and layer 1 support for the B-channel.
-.Pp
-The driver supports some passive ISA ISDN cards based on the
-HFC[-S][-SP] 2B[DS0] chips from Cologne Chip, currently this are the
-Teles 16.3c ISA PnP, the AcerISDN P10 ISA PnP and the TELEINT ISDN SPEED No.1.
-.Sh CAVEATS
-The driver is still in an experimental state.
-.Sh SEE ALSO
-.Xr i4bq921 4 ,
-.Xr i4bq931 4
-.Sh STANDARDS
-CCITT Recommendation I.430
-.Sh AUTHORS
-.An -nosplit
-The
-.Nm
-driver was written by
-.An Hans Petter Selasky Aq hselasky@c2i.net .
-.Pp
-This manpage was written by
-.An Hellmuth Michaelis Aq hm@FreeBSD.org .
-.Sh BUGS
-Always at least one left.