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

2 files changed, 2 insertions, 76 deletions

diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index 49f030e..09dfc08 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd April 9, 2008
+.Dd May 25, 2008
 .Dt RC.CONF 5
 .Os
 .Sh NAME
@@ -3530,75 +3530,6 @@ to be used within a jail.
 If set to
 .Dq Li YES ,
 allow applications within a jail to use System V IPC.
-.\" ----- ISDN settings ---------------------------------
-.It Va isdn_enable
-.Pq Vt bool
-Set to
-.Dq Li NO
-by default.
-When set to
-.Dq Li YES ,
-starts the
-.Xr isdnd 8
-daemon
-at system boot time.
-.It Va isdn_flags
-.Pq Vt str
-Set to
-.Dq Fl d Ns Cm n Fl d Ns Li 0x1f9
-by default.
-Additional flags to pass to
-.Xr isdnd 8
-(but see
-.Va isdn_fsdev
-and
-.Va isdn_ttype
-for certain tunable parameters).
-.It Va isdn_ttype
-.Pq Vt str
-Set to
-.Dq Li cons25
-by default.
-The terminal type of the output device when
-.Xr isdnd 8
-operates in full-screen mode.
-.It Va isdn_screenflags
-.Pq Vt str
-Set to
-.Dq Li NO
-by default.
-The video mode for full-screen mode (only for
-.Xr syscons 4
-console driver, see
-.Xr vidcontrol 1
-for valid modes).
-.It Va isdn_fsdev
-.Pq Vt str
-Set to
-.Dq Li NO
-by default.
-The output device for
-.Xr isdnd 8
-in full-screen mode (or
-.Dq Li NO
-for daemon mode).
-.It Va isdn_trace
-.Pq Vt bool
-Set to
-.Dq Li NO
-by default.
-When set to
-.Dq Li YES ,
-enables the ISDN protocol trace utility
-.Xr isdntrace 8
-at system boot time.
-.It Va isdn_traceflags
-.Pq Vt str
-Set to
-.Dq Fl f Pa /var/tmp/isdntrace0
-by default.
-Flags for
-.Xr isdntrace 8 .
 .\" -----------------------------------------------------
 .It Va harvest_interrupt
 .Pq Vt bool
@@ -4061,8 +3992,6 @@ Default
 .Xr ipf 8 ,
 .Xr ipfw 8 ,
 .Xr ipnat 8 ,
-.Xr isdnd 8 ,
-.Xr isdntrace 8 ,
 .Xr jail 8 ,
 .Xr kldxref 8 ,
 .Xr lpd 8 ,
diff --git a/share/man/man5/src.conf.5 b/share/man/man5/src.conf.5
index b471ba4..4557116 100644
--- a/share/man/man5/src.conf.5
+++ b/share/man/man5/src.conf.5
@@ -1,7 +1,7 @@
 .\" DO NOT EDIT-- this file is automatically generated.
 .\" from FreeBSD: src/tools/build/options/makeman,v 1.8 2007/12/12 16:39:31 ru Exp
 .\" $FreeBSD$
-.Dd March 29, 2008
+.Dd May 25, 2008
 .Dt SRC.CONF 5
 .Os
 .Sh NAME
@@ -300,9 +300,6 @@ Set to build Hesiod support.
 .It Va WITHOUT_HTML
 .\" from FreeBSD: src/tools/build/options/WITHOUT_HTML,v 1.1 2006/03/21 07:50:49 ru Exp
 Set to not build HTML docs.
-.It Va WITHOUT_I4B
-.\" from FreeBSD: src/tools/build/options/WITHOUT_I4B,v 1.1 2006/03/21 07:50:50 ru Exp
-Set to not build isdn4bsd package.
 .It Va WITH_IDEA
 .\" from FreeBSD: src/tools/build/options/WITH_IDEA,v 1.1 2006/03/21 07:50:50 ru Exp
 Set to build the IDEA encryption code.