[SCSI] nsp32: remove kernel 2.4 code

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: GOTO Masanori <gotom@sanori.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>