aic7xxx_old: removed unused 'req' variable

After the patch "block: remove spurious uses of REQ_HARDBARRIER",
we no longer use 'req' in aic7xxx_buildscb(). Kill it.

Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
1 file changed