scsi: bnx2fc: remove set but not used variable 'fh'

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

drivers/scsi/bnx2fc/bnx2fc_fcoe.c: In function bnx2fc_rcv:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:431:26: warning: variable fh set but not used [-Wunused-but-set-variable]

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/bnx2fc/bnx2fc_fcoe.c

@@ -428,7 +428,6 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 	struct fc_lport *lport;
 	struct bnx2fc_interface *interface;
 	struct fcoe_ctlr *ctlr;
-	struct fc_frame_header *fh;
 	struct fcoe_rcv_info *fr;
 	struct fcoe_percpu_s *bg;
 	struct sk_buff *tmp_skb;
@@ -463,7 +462,6 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 		goto err;
 
 	skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
-	fh = (struct fc_frame_header *) skb_transport_header(skb);
 
 	fr = fcoe_dev_from_skb(skb);
 	fr->fr_dev = lport;