[PATCH net-next] bnx2x: Remove set but not used variable 'mfw_vn'

[YueHaibing]

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

drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c: In function 
'bnx2x_get_hwinfo':
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:11940:10: warning:
 variable 'mfw_vn' set but not used [-Wunused-but-set-variable]

It's never used since introduction.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c 
b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 3b5b47e98c73..7c47be215a34 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11998,7 +11998,7 @@ static void validate_set_si_mode(struct bnx2x *bp)
 static int bnx2x_get_hwinfo(struct bnx2x *bp)
 {
        int /*abs*/func = BP_ABS_FUNC(bp);
-       int vn, mfw_vn;
+       int vn;
        u32 val = 0, val2 = 0;
        int rc = 0;
 
@@ -12083,12 +12083,10 @@ static int bnx2x_get_hwinfo(struct bnx2x *bp)
        /*
         * Initialize MF configuration
         */
-
        bp->mf_ov = 0;
        bp->mf_mode = 0;
        bp->mf_sub_mode = 0;
        vn = BP_VN(bp);
-       mfw_vn = BP_FW_MB_IDX(bp);
 
        if (!CHIP_IS_E1(bp) && !BP_NOMCP(bp)) {
                BNX2X_DEV_INFO("shmem2base 0x%x, size %d, mfcfg offset %d\n",