staging: rtl8192u: ieee80211: Remove unused variables

The pointer *skb2 is declared 'globally' inside ifdef NOT_YET. It's used nowhere in the directory.
Another pointer *skb2 is declared 'locally', again inside another ifdef NOT_YET in the function ieee80211_rx_frame_mgmt.
Hence, skb2 stays unused and has been removed.

This was done using Coccinelle:

@@ type T; identifier i; constant c; @@
-T i;
<... when != i
-i = c;
...>

---
 drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 1 -
 1 file changed, 1 deletion(-)

index 9dfde07..7808897 100644
@@ -909,7 +909,6 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	//added by amy for reorder
 #ifdef NOT_YET
 	struct net_device *wds = NULL;
-	struct sk_buff *skb2 = NULL;
 	struct net_device *wds = NULL;
 	int from_assoc_ap = 0;
 	void *sta = NULL;

--
2.1.4