[NUI] Fix dispose bug in ImageView.UpdateImage

Signed-off-by: Jiyun Yang <ji.yang@samsung.com>

diff --git a/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs b/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
index dfee29d..fdfc64a 100755 (executable)
--- a/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
@@ -1244,9 +1244,7 @@ namespace Tizen.NUI.BaseComponents
             {
                 if (_resourceUrl != null)
                 {
-                  Size2D originalImageSize = ImageLoading.GetOriginalImageSize(_resourceUrl);
-                  Size2D imageSize = originalImageSize;
-                  originalImageSize?.Dispose();
+                  Size2D imageSize = ImageLoading.GetOriginalImageSize(_resourceUrl);
 
                   int adjustedDesiredWidth, adjustedDesiredHeight;
                   float aspectOfDesiredSize = (float)_desired_height / (float)_desired_width;