wifiloader: remove unused variable

Change-Id: I88926520b7eb47533478ac3ff68acac25c60f201
diff --git a/wifiloader/wifiloader.c b/wifiloader/wifiloader.c
index 0aeec3e..ce01b02 100644
--- a/wifiloader/wifiloader.c
+++ b/wifiloader/wifiloader.c
@@ -111,7 +111,6 @@
     char buf[8] = { '\0' };
     FILE *fp;
     size_t r;
-    int fd;
     struct stat st;
 
     if (stat(WIFI_DRIVER_MODULE_PATH, &st) == 0) {