Fixed OnButtonDownEvent incorrect ifdef

CHANGELOG.md

 
 ## 2020.2.10
 
-#### Added
-
+
+* Fixed OnButtonDownEvent incorrect ifdef
 
 ## 2020.2.9
 

Runtime/LevelScripting/Events/OnButtonDownEvent.cs

         public Callable[] OnButtonDown;
         public Callable[] OnButtonUp;
 
-#if !ENABLE_LEGACY_INPUT_MANAGER
+#if ENABLE_LEGACY_INPUT_MANAGER
         void Update()
         {
             if (Input.GetButtonDown(Button))