Merge "delete not used GerritWidgetCallback and OldGerritCallback"

gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/ChangeDetailCache.java

@@ -61,35 +61,6 @@ public class ChangeDetailCache extends ListenableValue<ChangeDetail> {
     }
   }
 
-  public static class OldGerritCallback extends
-      com.google.gerrit.client.rpc.GerritCallback<ChangeDetail> {
-    @Override
-    public void onSuccess(ChangeDetail detail) {
-      setChangeDetail(detail);
-    }
-  }
-
-  /*
-   * GerritCallback which will re-enable a FocusWidget
-   * {@link com.google.gwt.user.client.ui.FocusWidget} if we are returning
-   * with a failed result.
-   *
-   * It is up to the caller to handle the original disabling of the Widget.
-   */
-  public static class GerritWidgetCallback extends OldGerritCallback {
-    private FocusWidget widget;
-
-    public GerritWidgetCallback(FocusWidget widget) {
-      this.widget = widget;
-    }
-
-    @Override
-    public void onFailure(Throwable caught) {
-      widget.setEnabled(true);
-      super.onFailure(caught);
-    }
-  }
-
   public static class IgnoreErrorCallback implements AsyncCallback<ChangeDetail> {
     @Override
     public void onSuccess(ChangeDetail info) {