net: neterion: vxge: remove set but not used variables 'max_frags' and 'txdl_priv'

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

drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1698:35:
 warning: variable 'txdl_priv' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1699:6:
 warning: variable 'max_frags' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit 11324132 ("Neterion: New driver: Traffic & alarm handler")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/neterion/vxge/vxge-traffic.c

@@ -1695,17 +1695,10 @@ enum vxge_hw_status vxge_hw_fifo_handle_tcode(struct __vxge_hw_fifo *fifo,
  */
 void vxge_hw_fifo_txdl_free(struct __vxge_hw_fifo *fifo, void *txdlh)
 {
-	struct __vxge_hw_fifo_txdl_priv *txdl_priv;
-	u32 max_frags;
 	struct __vxge_hw_channel *channel;
 
 	channel = &fifo->channel;
 
-	txdl_priv = __vxge_hw_fifo_txdl_priv(fifo,
-			(struct vxge_hw_fifo_txd *)txdlh);
-
-	max_frags = fifo->config->max_frags;
-
 	vxge_hw_channel_dtr_free(channel, txdlh);
 }