b43: remove dead function b43_rssinoise_postprocess()

This function is dead for more than 10 years. Remove it.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/broadcom/b43/xmit.c

@@ -629,19 +629,6 @@ static s8 b43_rssi_postprocess(struct b43_wldev *dev,
 	return (s8) tmp;
 }
 
-//TODO
-#if 0
-static s8 b43_rssinoise_postprocess(struct b43_wldev *dev, u8 in_rssi)
-{
-	struct b43_phy *phy = &dev->phy;
-	s8 ret;
-
-	ret = b43_rssi_postprocess(dev, in_rssi, 0, 1, 1);
-
-	return ret;
-}
-#endif
-
 void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
 {
 	struct ieee80211_rx_status status;