Fix after in-depth code review by @frenck

Author: acockburn

appdaemon/plugins/hass/hassplugin.py

@@ -151,7 +151,6 @@ def session(self):
                 headers["x-ha-access"] = self.ha_key
 
             self._session = aiohttp.ClientSession(
-                # base_url=self.ha_url,
                 connector=conn,
                 headers=headers,
                 json_serialize=utils.convert_json,