From 42caa310674702d02867f2339e0359cbf701fb5a Mon Sep 17 00:00:00 2001
From: "Teagan M. Glenn" <that@teagantotally.rocks>
Date: Wed, 17 Aug 2016 22:22:29 -0600
Subject: [PATCH] Unused variable

---
 homeassistant/components/sensor/wunderground.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/homeassistant/components/sensor/wunderground.py b/homeassistant/components/sensor/wunderground.py
index d5916f99ccc..4e94249f199 100644
--- a/homeassistant/components/sensor/wunderground.py
+++ b/homeassistant/components/sensor/wunderground.py
@@ -133,7 +133,6 @@ class WUndergroundData(object):
         self._api_key = api_key
         self._pws_id = pws_id
         self.data = None
-        self.unit_system = None
 
     def _build_url(self):
         print(self._api_key)