IB/hfi1: remove redundant assignment to variable ret

The variable ret is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Link: https://lore.kernel.org/r/20191122154814.87257-1-colin.king@canonical.com
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/hfi1/platform.c

@@ -634,7 +634,7 @@ static void apply_tx_lanes(struct hfi1_pportdata *ppd, u8 field_id,
 			   u32 config_data, const char *message)
 {
 	u8 i;
-	int ret = HCMD_SUCCESS;
+	int ret;
 
 	for (i = 0; i < 4; i++) {
 		ret = load_8051_config(ppd->dd, field_id, i, config_data);