Remove plumbing for today value

xfa/fwl/core/ifwl_monthcalendar.h

Index: xfa/fwl/core/ifwl_monthcalendar.h
diff --git a/xfa/fwl/core/ifwl_monthcalendar.h b/xfa/fwl/core/ifwl_monthcalendar.h
index dd586631063e4ba1459499018dd7d88d7594aa1b..758ce5c7308207c0ef69602d85e19d69ca722ef4 100644
--- a/xfa/fwl/core/ifwl_monthcalendar.h
+++ b/xfa/fwl/core/ifwl_monthcalendar.h
@@ -28,13 +28,6 @@ class IFWL_Widget;
 
 class IFWL_MonthCalendar : public IFWL_Widget {
  public:
-  class DataProvider : public IFWL_Widget::DataProvider {
-   public:
-    virtual int32_t GetCurDay(IFWL_Widget* pWidget) = 0;
-    virtual int32_t GetCurMonth(IFWL_Widget* pWidget) = 0;
-    virtual int32_t GetCurYear(IFWL_Widget* pWidget) = 0;
-  };
-
   IFWL_MonthCalendar(const CFWL_App* app,
                      std::unique_ptr<CFWL_WidgetProperties> properties,
                      IFWL_Widget* pOuter);