#23 watering task refactor

src/main/java/ch/zhaw/gartenverwaltung/bootstrap/AppLoader.java

@@ -32,7 +32,6 @@ public class AppLoader {
     private final TaskList taskList = new JsonTaskList();
 
     private final GardenSchedule gardenSchedule = new GardenSchedule(taskList, plantList);
-    private final WeatherGradenTaskPlanner weatherGradenTaskPlanner = new WeatherGradenTaskPlanner(taskList,plantList,cropList);
     private final Garden garden = new Garden(gardenSchedule, cropList);