bna: Fix set-but-unused variables.

The variable 'pgoff' is set but unused in bfa_nw_ioc_fwver_get()
and bfa_ioc_download_fw().

Similarly for 'cmd_h' in bna_mbox_flush_q and the entirety of
bna_rit_mod_uninit() is unused since variables are purely set but no
action is made using them.

Same for 'bna' in bna_rit_create() and 'ret' in bna_rx_create().

Just kill them off.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bna/bfa_ioc.c b/drivers/net/bna/bfa_ioc.c
index e3de0b8..c1c9e70 100644
--- a/drivers/net/bna/bfa_ioc.c
+++ b/drivers/net/bna/bfa_ioc.c
@@ -1272,13 +1272,12 @@
 void
 bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
 {
-	u32	pgnum, pgoff;
+	u32	pgnum;
 	u32	loff = 0;
 	int		i;
 	u32	*fwsig = (u32 *) fwhdr;
 
 	pgnum = bfa_ioc_smem_pgnum(ioc, loff);
-	pgoff = bfa_ioc_smem_pgoff(ioc, loff);
 	writel(pgnum, ioc->ioc_regs.host_page_num_fn);
 
 	for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
@@ -1509,7 +1508,7 @@
 		    u32 boot_param)
 {
 	u32 *fwimg;
-	u32 pgnum, pgoff;
+	u32 pgnum;
 	u32 loff = 0;
 	u32 chunkno = 0;
 	u32 i;
@@ -1522,7 +1521,6 @@
 	fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), chunkno);
 
 	pgnum = bfa_ioc_smem_pgnum(ioc, loff);
-	pgoff = bfa_ioc_smem_pgoff(ioc, loff);
 
 	writel(pgnum, ioc->ioc_regs.host_page_num_fn);