Remove unused method CPDFSDK_BAAnnot::CreateFormFiller.

Review-Url: https://codereview.chromium.org/2206283004
diff --git a/fpdfsdk/fsdk_baseannot.cpp b/fpdfsdk/fsdk_baseannot.cpp
index 4d0cc59..37791ac 100644
--- a/fpdfsdk/fsdk_baseannot.cpp
+++ b/fpdfsdk/fsdk_baseannot.cpp
@@ -826,9 +826,6 @@
                    FALSE);
 }
 
-FX_BOOL CPDFSDK_BAAnnot::CreateFormFiller() {
-  return TRUE;
-}
 FX_BOOL CPDFSDK_BAAnnot::IsVisible() const {
   uint32_t nFlags = GetFlags();
   return !((nFlags & ANNOTFLAG_INVISIBLE) || (nFlags & ANNOTFLAG_HIDDEN) ||
diff --git a/fpdfsdk/include/fsdk_baseannot.h b/fpdfsdk/include/fsdk_baseannot.h
index a4f72ab..83bb02d 100644
--- a/fpdfsdk/include/fsdk_baseannot.h
+++ b/fpdfsdk/include/fsdk_baseannot.h
@@ -186,9 +186,6 @@
 
  protected:
   CPDF_Annot* m_pAnnot;
-
- private:
-  FX_BOOL CreateFormFiller();
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_BASEANNOT_H_