revert error

hassio/host/info.py

@@ -44,6 +44,10 @@ class InfoCenter(CoreSysAttributes):
 
     async def update(self):
         """Update properties over dbus."""
+        if not self.sys_dbus.systemd.is_connected:
+            _LOGGER.error("No hostname dbus connection available")
+            raise HostNotSupportedError()
+
         _LOGGER.info("Update local host information")
         try:
             self._data = await self.sys_dbus.hostname.get_properties()