staging: rtl8192e: Remove rtllib_stats structure

Two remaining fields of rtllib_stats are only incremented, but
never read.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib.h

@@ -690,11 +690,6 @@ struct rtllib_frag_entry {
 	u8 dst_addr[ETH_ALEN];
 };
 
-struct rtllib_stats {
-	unsigned int tx_discards;
-	unsigned int rx_discards_undecryptable;
-};
-
 struct rtllib_device;
 
 #define SEC_ACTIVE_KEY    (1<<4)
@@ -1532,7 +1527,6 @@ struct rtllib_device {
 
 	/* Bookkeeping structures */
 	struct net_device_stats stats;
-	struct rtllib_stats ieee_stats;
 	struct rtllib_softmac_stats softmac_stats;
 
 	/* Probe / Beacon management */

drivers/staging/rtl8192e/rtllib_rx.c

@@ -317,7 +317,6 @@ rtllib_rx_frame_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 			netdev_dbg(ieee->dev,
 				   "Decryption failed ICV mismatch (key %d)\n",
 				   skb->data[hdrlen + 3] >> 6);
-		ieee->ieee_stats.rx_discards_undecryptable++;
 		return -1;
 	}
 
@@ -1077,7 +1076,6 @@ static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
 			netdev_dbg(ieee->dev,
 				   "Decryption failed (not set) (SA= %pM)\n",
 				   hdr->addr2);
-			ieee->ieee_stats.rx_discards_undecryptable++;
 			return -1;
 		}
 	}

drivers/staging/rtl8192e/rtllib_tx.c

@@ -205,7 +205,6 @@ int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag,
 	if (res < 0) {
 		netdev_info(ieee->dev, "%s: Encryption failed: len=%d.\n",
 			    ieee->dev->name, frag->len);
-		ieee->ieee_stats.tx_discards++;
 		return -1;
 	}