staging: wilc1000: use wilc instead of wilc_dev and remove wilc_dev

This patch changes wilc_dev with wilc in the function call
wilc_wlan_get_num_conn_ifcs, and remove wilc_dev and it's related codes.

Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index db34048..b1b4802 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -2919,7 +2919,7 @@
 			del_timer(&hif_drv->scan_timer);
 			PRINT_D(HOSTINF_DBG, "scan completed successfully\n");
 
-			if (!wilc_wlan_get_num_conn_ifcs(wilc_dev))
+			if (!wilc_wlan_get_num_conn_ifcs(wilc))
 				wilc_chip_sleep_manually(wilc);
 
 			Handle_ScanDone(msg.drv, SCAN_EVENT_DONE);