修复null

Furnace/FurnaceRT/Extraction/MinicsManager.cs

@@ -119,7 +119,6 @@ namespace FurnaceRT.Extraction
             var pm = Singleton<EquipmentManager>.Instance.Modules[ModuleName.PM1] as PMModule;
             lock (_lock)
             {
-                var alarmValue = MinicsAlarmDic[gasLineHeaterIndex];
                 string message;
 
                 switch (alarm.AlarmType)