While here, also remove two forgotten descriptions for long obsolete
devices.

ok deraadt@ yasuoka@ reyk@

already does this, so we don't want to go backwards on password changes.
ok krw

unused for now, but I plan to convert all programs in base to use it in
a future diff. /dev/bpf0 is for compatibility with existing binaries
and is to be removed after a transition period.
ok rpe krw, for the installer part
"Let's see it hit the tree." deraadt

Remove machdep.userldt sysctl.
Remove i386_[gs]et_ldt syscall stub from libi386.
Remove i386_[gs]et_ldt regression test.
ok mlarkin@ millert@ guenther@

emulations left; ok millert@ deraadt@, jmc@ (man pages)

Needed for the key-value interface that has been added to pvbus(4).
OK mikeb@

and pwd_gensalt.c - so remove it from the default /etc/login.conf files as well.
ok millert@

OK dlg@ mpi@

flags in the disklabel. These flags were discarded in 2006.
Remove documentation for and instances of 'ty'. Add instances of
'dt' that were missing. Use 'floppy' as the value of 'dt' for all
floppies and 'rdroot' for all boot images/miniroots.
Add 'rdroot' to dktypenames and an associated #define DTYPE_RDROOT,
since 'dt' values are parsed by matching entries in dktypenames[].
Slightly tweaked part of larger cleanup diff previously ok deraadt@.

with r1.18. 'rm' and 'il' were removed from getdiskbyname() in 2009
with r1.19. The associated disklabel fields were recycled for other
purposes.
Another 'harmless' part of the larger disklabel cleanup diff.
ok deraadt@ as part of that larger diff.

nt# * ns# * nc# == pc# == pa#
which makes for a better disklabel via getdiskbyname().
ok deraadt@

than the daemon class' default of 128.  Reminded by/ok ajacoutot@

inverted.

floppy. A few drivers are missing, but the world has moved on (the drivers
included are always a work in progress)
Speeds up make release substantially, of course.

ok henning@

ok deraadt millert

noticed by jsg, and important enough to make release

'miniroot and maxiroot')..
from chris