Staging: rtl8188eu: os_dep: Remove NULL test before rtw_free_netdev

The function rtw_free_netdev test whether its argument is NULL and
return immediately. So NULL test before this function is not needed.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/os_dep/usb_intf.c

@@ -474,8 +474,7 @@ static void rtw_usb_if1_deinit(struct adapter *if1)
 	pr_debug("+r871xu_dev_remove, hw_init_completed=%d\n",
 		if1->hw_init_completed);
 	rtw_free_drv_sw(if1);
-	if (pnetdev)
-		rtw_free_netdev(pnetdev);
+	rtw_free_netdev(pnetdev);
 }
 
 static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid)