Remove { delete this; } anti-pattern from IXFA_WidgetIterator

xfa/fxfa/app/xfa_ffpageview.cpp

Index: xfa/fxfa/app/xfa_ffpageview.cpp
diff --git a/xfa/fxfa/app/xfa_ffpageview.cpp b/xfa/fxfa/app/xfa_ffpageview.cpp
index f1898c83f1153d3c1ffed022e07d088d1429888d..e5a05734dce04098d78d843d2726b84b1322126b 100644
--- a/xfa/fxfa/app/xfa_ffpageview.cpp
+++ b/xfa/fxfa/app/xfa_ffpageview.cpp
@@ -197,6 +197,7 @@ CXFA_FFWidget* CXFA_FFPageWidgetIterator::GetWidget(
   }
   return NULL;
 }
+
 CXFA_FFTabOrderPageWidgetIterator::CXFA_FFTabOrderPageWidgetIterator(
     CXFA_FFPageView* pPageView,
     uint32_t dwFilter)
@@ -206,10 +207,9 @@ CXFA_FFTabOrderPageWidgetIterator::CXFA_FFTabOrderPageWidgetIterator(
                           ->GetCurVersionMode() < XFA_VERSION_205;
   Reset();
 }
+
 CXFA_FFTabOrderPageWidgetIterator::~CXFA_FFTabOrderPageWidgetIterator() {}
-void CXFA_FFTabOrderPageWidgetIterator::Release() {
-  delete this;
-}
+
 void CXFA_FFTabOrderPageWidgetIterator::Reset() {
   CreateTabOrderWidgetArray();
   m_iCurWidget = -1;