Debugger: Fix removing items from modules model

Change-Id: Icce09b890e9a4a5cca142ee5307fd6f42bd5c839
Reviewed-by: hjk <hjk@qt.io>

src/plugins/debugger/moduleshandler.cpp

@@ -327,7 +327,8 @@ void ModulesHandler::endUpdateAll()
         if (!item->updated)
             toDestroy.append(item);
     });
-    qDeleteAll(toDestroy);
+    for (TreeItem *item : toDestroy)
+        m_model->destroyItem(item);
 }
 
 } // namespace Internal