scsi: hisi_sas: delete repeated configuration in free_device_v2_hw()

Delete repeated configuration items for hisi_sas_device() when
we free a device. These items are now only set in
hisi_sas_dev_gone().

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>