Remove redundant casts, part 4

fpdfsdk/fsdk_annothandler.cpp

Index: fpdfsdk/fsdk_annothandler.cpp
diff --git a/fpdfsdk/fsdk_annothandler.cpp b/fpdfsdk/fsdk_annothandler.cpp
index eda3b49058034dccaba177dafcf5ac2c9a123e3e..ded04c93714bad49dc67445dcec1c3df8e852bc6 100644
--- a/fpdfsdk/fsdk_annothandler.cpp
+++ b/fpdfsdk/fsdk_annothandler.cpp
@@ -423,7 +423,7 @@ FX_BOOL CPDFSDK_BFAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
 CPDFSDK_Annot* CPDFSDK_BFAnnotHandler::NewAnnot(CPDF_Annot* pAnnot,
                                                 CPDFSDK_PageView* pPage) {
   CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
-  CPDFSDK_InterForm* pInterForm = (CPDFSDK_InterForm*)pSDKDoc->GetInterForm();
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
   CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl(
       pInterForm->GetInterForm(), pAnnot->GetAnnotDict());
   if (!pCtrl)
@@ -729,7 +729,7 @@ CPDFSDK_XFAAnnotHandler::CPDFSDK_XFAAnnotHandler(CPDFDoc_Environment* pApp)
 CPDFSDK_Annot* CPDFSDK_XFAAnnotHandler::NewAnnot(CXFA_FFWidget* pAnnot,
                                                  CPDFSDK_PageView* pPage) {
   CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
-  CPDFSDK_InterForm* pInterForm = (CPDFSDK_InterForm*)pSDKDoc->GetInterForm();
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
   CPDFSDK_XFAWidget* pWidget = new CPDFSDK_XFAWidget(pAnnot, pPage, pInterForm);
   pInterForm->AddXFAMap(pAnnot, pWidget);
   return pWidget;