[PATCH] libertas: remove adapter->adhoc_grate_enabled

The variable was initialized with 0 (false). There is no code that would
ever change it, so we can use the false-patch directly.

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

@@ -1042,7 +1042,6 @@ static void wlan_init_adapter(wlan_private * priv)
 
 	adapter->auto_rate = 1;
 	adapter->cur_rate = 0;
-	adapter->adhoc_grate_enabled = 0;
 
 	adapter->beaconperiod = MRVDRV_BEACON_INTERVAL;