scsi: esas2r: Remove unused esas2r_build_cli_req()

esas2r_build_cli_req() has been unused since it was added in 2013 by
commit 26780d9e ("[SCSI] esas2r: ATTO Technology ExpressSAS 6G
SAS/SATA RAID Adapter Driver")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20241102220336.80541-1-linux@treblig.org


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>