scsi: pm80xx: Remove set but not used variable 'page_code'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/pm8001/pm80xx_hwi.c: In function 'pm8001_set_phy_profile':
drivers/scsi/pm8001/pm80xx_hwi.c:4679:6: warning:
 variable 'page_code' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/pm8001/pm80xx_hwi.c

@@ -4676,9 +4676,8 @@ void mpi_set_phy_profile_req(struct pm8001_hba_info *pm8001_ha,
 void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
 	u32 length, u8 *buf)
 {
-	u32 page_code, i;
+	u32 i;
 
-	page_code = SAS_PHY_ANALOG_SETTINGS_PAGE;
 	for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 		mpi_set_phy_profile_req(pm8001_ha,
 			SAS_PHY_ANALOG_SETTINGS_PAGE, i, length, (u32 *)buf);