diff --git a/fpdfsdk/cpdfsdk_annot.cpp b/fpdfsdk/cpdfsdk_annot.cpp
index e0abe6f..36bec15 100644
--- a/fpdfsdk/cpdfsdk_annot.cpp
+++ b/fpdfsdk/cpdfsdk_annot.cpp
@@ -22,7 +22,7 @@
 }  // namespace
 
 CPDFSDK_Annot::CPDFSDK_Annot(CPDFSDK_PageView* pPageView)
-    : m_pPageView(pPageView), m_bSelected(FALSE), m_nTabOrder(-1) {}
+    : m_pPageView(pPageView), m_bSelected(FALSE) {}
 
 CPDFSDK_Annot::~CPDFSDK_Annot() {}
 
@@ -84,14 +84,6 @@
   m_bSelected = bSelected;
 }
 
-int CPDFSDK_Annot::GetTabOrder() {
-  return m_nTabOrder;
-}
-
-void CPDFSDK_Annot::SetTabOrder(int iTabOrder) {
-  m_nTabOrder = iTabOrder;
-}
-
 UnderlyingPageType* CPDFSDK_Annot::GetUnderlyingPage() {
 #ifdef PDF_ENABLE_XFA
   return GetPDFXFAPage();
diff --git a/fpdfsdk/include/cpdfsdk_annot.h b/fpdfsdk/include/cpdfsdk_annot.h
index 5f5cce4..0fbee9e 100644
--- a/fpdfsdk/include/cpdfsdk_annot.h
+++ b/fpdfsdk/include/cpdfsdk_annot.h
@@ -53,16 +53,12 @@
   void SetPage(CPDFSDK_PageView* pPageView);
   CPDFSDK_PageView* GetPageView() const { return m_pPageView; }
 
-  int GetTabOrder();
-  void SetTabOrder(int iTabOrder);
-
   FX_BOOL IsSelected();
   void SetSelected(FX_BOOL bSelected);
 
  protected:
   CPDFSDK_PageView* m_pPageView;
   FX_BOOL m_bSelected;
-  int m_nTabOrder;
 };
 
 #endif  // FPDFSDK_INCLUDE_CPDFSDK_ANNOT_H_