scsi: qla4xxx: Remove an unused function

This was detected by building the kernel with clang and W=1.

Link: https://lore.kernel.org/r/20210415220826.29438-13-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla4xxx/ql4_nx.c

@@ -3634,12 +3634,6 @@ flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
 	return hw->flash_conf_off | faddr;
 }
 
-static inline uint32_t
-flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
-{
-	return hw->flash_data_off | faddr;
-}
-
 static uint32_t *
 qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
     uint32_t faddr, uint32_t length)