staging: rtl8192e: Remove unused variables txbytes.., txbyt.. and signa..

txbytesmulticast, txbytesbroadcast and signal_quality are initialized and
increased or set but never read. Remove dead code.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/c469f82619625fecbed95532967cc7ec2b12e5f9.1674675808.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c

@@ -1613,7 +1613,6 @@ static void _rtl92e_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
 
 			tmp_val = priv->stats.slide_evm_total /
 				  slide_evm_statistics;
-			priv->stats.signal_quality = tmp_val;
 			priv->stats.last_signal_strength_inpercent = tmp_val;
 		}
 

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -1616,11 +1616,7 @@ static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
 	type = WLAN_FC_GET_TYPE(fc);
 	pda_addr = header->addr1;
 
-	if (is_broadcast_ether_addr(pda_addr))
-		priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
-	else if (is_multicast_ether_addr(pda_addr))
-		priv->stats.txbytesmulticast += skb->len - fwinfo_size;
-	else
+	if (!is_broadcast_ether_addr(pda_addr) && !is_multicast_ether_addr(pda_addr))
 		priv->stats.txbytesunicast += skb->len - fwinfo_size;
 
 	spin_lock_irqsave(&priv->irq_th_lock, flags);

drivers/staging/rtl8192e/rtl8192e/rtl_core.h

@@ -184,8 +184,6 @@ enum reset_type {
 
 struct rt_stats {
 	unsigned long received_rate_histogram[4][32];
-	unsigned long txbytesmulticast;
-	unsigned long txbytesbroadcast;
 	unsigned long txbytesunicast;
 	unsigned long rxbytesunicast;
 	unsigned long txretrycount;
@@ -195,7 +193,6 @@ struct rt_stats {
 	unsigned long	slide_rssi_total;
 	unsigned long slide_evm_total;
 	long signal_strength;
-	long signal_quality;
 	long last_signal_strength_inpercent;
 	long	recv_signal_power;
 	u8 rx_rssi_percentage[4];