SDK : remover deleteFromCache call in SpatialAssetDataObject since it's not allowed anymore

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7915 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

jme3-core/src/com/jme3/gde/core/assets/SpatialAssetDataObject.java

@@ -77,7 +77,7 @@ public class SpatialAssetDataObject extends AssetDataObject {
         FileLock lock = null;
         try {
             lock = getPrimaryFile().lock();
-            mgr.deleteFromCache(new ModelKey(assetKey));
+           //mgr.deleteFromCache(new ModelKey(assetKey));
             Spatial spatial = mgr.loadModel(assetKey);
             savable = spatial;
             lock.releaseLock();