bz 6bba9b4244 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		2008-05-26 10:40:09 +00:00
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