scsi: hisi_sas: Remove unused variable and check in hisi_sas_send_ata_reset_each_phy()

In commit 29e2bac8 ("scsi: hisi_sas: Fix some issues related to
asd_sas_port->phy_list"), we use asd_sas_port->phy_mask instead of
accessing asd_sas_port->phy_list, and it is enough to use
asd_sas_port->phy_mask to check the state of phy, so remove the unused
check and variable.

Link: https://lore.kernel.org/r/1641300126-53574-1-git-send-email-chenxiang66@hisilicon.com


Fixes: 29e2bac8 ("scsi: hisi_sas: Fix some issues related to asd_sas_port->phy_list")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Colin King <colin.i.king@gmail.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>