[NUI] revert workaround for vulkan (#597)

diff --git a/src/Tizen.NUI/src/internal/NUICoreBackend.cs b/src/Tizen.NUI/src/internal/NUICoreBackend.cs
index 331542c..f7c31ac 100755 (executable)
--- a/src/Tizen.NUI/src/internal/NUICoreBackend.cs
+++ b/src/Tizen.NUI/src/internal/NUICoreBackend.cs
@@ -148,11 +148,7 @@ namespace Tizen.NUI
 
             _application.MainLoop();
 
-            if(Graphics.Backend == Graphics.BackendType.Gles)
-            {
-                //Temporary fix. VK backend make crash. this will be removed after VK memory issue is resolved.
-                _application.Dispose();
-            }
+            _application.Dispose();
 
         }