remove mscsi [PSARC/2009/341 Self Review]

[James Carlson]

Garrett D'Amore - sun microsystems writes:
> I'd like to remove the mscsi bus nexus pseudo-driver.

+1.  Torch it.  Don't forget to yank the obscure
/usr/include/sys/dktp/mscsi.h from SUNWpsh.  ;-}

-- 
James Carlson, Solaris Networking              <james.d.carlson at sun.com>
Sun Microsystems / 35 Network Drive        71.232W   Vox +1 781 442 2084
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