[SCSI] remove PCI2000 and PCI2220i drivers

From: Christoph Hellwig <hch@lst.de>

Both drivers are marked broken and haven't compiled since very early
2.5.x.  And they're for IDE hardware so they shouldn't have been
written to the SCSI layer at all.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>