State class: removed toString() method for simplicity (leave out all that is unnecessary).

Author: swa-ds

src/main/java/de/doubleslash/kata/designpattern/state/State.java

@@ -28,8 +28,4 @@ public String getStateName() {
         return stateName;
     }
 
-    public String toString() {
-        return getStateName();
-    }
-
 }