wext: Do not set SSID on disconnect on Android

Some drivers seem to try to associate using the random SSID, so
do not use this hack on Android.

src/drivers/driver_wext.c

@@ -1824,8 +1824,10 @@ static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
 {
 	struct iwreq iwr;
 	const u8 null_bssid[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
+#ifndef ANDROID
 	u8 ssid[32];
 	int i;
+#endif /* ANDROID */
 
 	/*
 	 * Only force-disconnect when the card is in infrastructure mode,
@@ -1846,6 +1848,7 @@ static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
 				   "selection on disconnect");
 		}
 
+#ifndef ANDROID
 		if (drv->cfg80211) {
 			/*
 			 * cfg80211 supports SIOCSIWMLME commands, so there is
@@ -1871,6 +1874,7 @@ static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
 			wpa_printf(MSG_DEBUG, "WEXT: Failed to set bogus "
 				   "SSID to disconnect");
 		}
+#endif /* ANDROID */
 	}
 }