[PATCH] libertas: remove adapter->locallisteninterval

locallisteninterval was initialized with 0, but there is no code that
changes it, rendering it rather useless.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/main.c

@@ -1059,7 +1059,6 @@ static void wlan_init_adapter(wlan_private * priv)
 
 	adapter->psstate = PS_STATE_FULL_POWER;
 	adapter->needtowakeup = 0;
-	adapter->locallisteninterval = 0;	/* default value in firmware will be used */
 
 	adapter->intcounter = 0;