remove dpt(4) driver for DPT EATA SCSI RAID

Not built since 2006, and a mail from 2004 mentions no one having
hardware. Unsurprisingly it does not build with clang.

ok mlarkin@ krw@ deraadt@

naddy discovered that bha no longer builds because it includes the now
deleted aha.h header. therefore bha must be dragged into the attic too.

the src tree is growing too large. delete the aha and ahb drivers in
order to make room for llvm. er, the llvm makefiles. er, some of them.

from brad:
don;t try to list all generations in ciss's Nd;
do not use all caps for "array"

tedu FDDI documentation bits.

ok jmc@

convert to new .Dd format;

sync the eisa scsi devices;

drop full stops from device list;

standardise headers and blurb for the device lists; ok miod

a little better .Nd;

sync the raid controller entries;

the start of making .Nd lines more useful for section4;
this diff addresses ethernet devices only

input from nick jsg deraadt, maybe some others

A start at removing long Xr lists near the end. Almost all the things
have been mentioned up higher already, so the Xr list near the bottom
was always getting out of date. It is just not realistic

A start at removing long Xr lists near the end. Almost all the things
have been mentioned up higher already, so the Xr list near the bottom
was always getting out of date. It is just not realistic to expect that
it could ever be kept up to date; ok jmc

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- INTRODUCTION -> DESCRIPTION
- lowercase .Nd

use width 12n and -compact

- section reorder
- some macro fixes
- kill whitespace at EOL

corrections from Leandro Costa.

- corrections to tradenames
- updated URLs
- general typos

thanks Leandro!

invalid mdoc macros
caused words to disappear from the output
ok jmc@ a while ago

Time to cleanup:
o) start new sentence on a new line;
o) wrap long lines;
o) don't use .Pp before/after .Sh, .Ss;
o) OpenBSD -> .Ox;
o) typos;
o) close .Rs;
o) use space between arguments in tag, for

Time to cleanup:
o) start new sentence on a new line;
o) wrap long lines;
o) don't use .Pp before/after .Sh, .Ss;
o) OpenBSD -> .Ox;
o) typos;
o) close .Rs;
o) use space between arguments in tag, for example:
.Xr blabla ) .

miod@ ok

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Incomplete section 4 mi manual page cleanup.
- make configuration lines match GENERIC files
- more Xr (hopefully usefule Xr)
- never mention intro(4) on non-physical devices (i.e. protocols), always

Incomplete section 4 mi manual page cleanup.
- make configuration lines match GENERIC files
- more Xr (hopefully usefule Xr)
- never mention intro(4) on non-physical devices (i.e. protocols), always
mention it for physical devices
- random text style and quoting fixes
- drivers ported from FreeBSD did mention rc.conf instead of hostname.if as
the place to put mediaopt
- some .Tn UNIX -> .Ox replacements
- etc, etc...

reviewd in part by deraadt@ (until he got bored of this)

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xr driver pages right off of the list, not at the end; from weissman dude

nx/ox; from weissman dude

eisa page and xref it