Remove unused widget handler overrides

fpdfsdk/cpdfsdk_widgethandler.cpp

Index: fpdfsdk/cpdfsdk_widgethandler.cpp
diff --git a/fpdfsdk/cpdfsdk_widgethandler.cpp b/fpdfsdk/cpdfsdk_widgethandler.cpp
index e294c4f2044cef4032fc2a1c1533fbd1a1e50063..2509eb62855f59e6eb057888f9953355611dd4ee 100644
--- a/fpdfsdk/cpdfsdk_widgethandler.cpp
+++ b/fpdfsdk/cpdfsdk_widgethandler.cpp
@@ -88,8 +88,6 @@ void CPDFSDK_WidgetHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
   pInterForm->RemoveMap(pControl);
 }
 
-void CPDFSDK_WidgetHandler::DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
-
 void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
                                    CPDFSDK_Annot* pAnnot,
                                    CFX_RenderDevice* pDevice,
@@ -104,10 +102,6 @@ void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
   }
 }
 
-void CPDFSDK_WidgetHandler::OnDelete(CPDFSDK_Annot* pAnnot) {}
-
-void CPDFSDK_WidgetHandler::OnRelease(CPDFSDK_Annot* pAnnot) {}
-
 void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
                                          CPDFSDK_Annot::ObservedPtr* pAnnot,
                                          uint32_t nFlag) {
@@ -227,11 +221,6 @@ FX_BOOL CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
   return FALSE;
 }
 
-void CPDFSDK_WidgetHandler::OnCreate(CPDFSDK_Annot* pAnnot) {
-  if (!pAnnot->IsSignatureWidget() && m_pFormFiller)
-    m_pFormFiller->OnCreate(pAnnot);
-}
-
 void CPDFSDK_WidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
   if (pAnnot->IsSignatureWidget())
     return;
@@ -257,8 +246,6 @@ void CPDFSDK_WidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
       pWidget->ResetAppearance(FALSE);
   }
 #endif  // PDF_ENABLE_XFA
-  if (m_pFormFiller)
-    m_pFormFiller->OnLoad(pAnnot);
 }
 
 FX_BOOL CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,