Remove unused CPDF_Dictionary::IsSignatureDict().

Change-Id: I21320f89cc3d5e487506d6383d11ff688ad6b887
Reviewed-on: https://pdfium-review.googlesource.com/c/43607
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

2 files changed, 0 insertions, 5 deletions

diff --git a/core/fpdfapi/parser/cpdf_dictionary.cpp b/core/fpdfapi/parser/cpdf_dictionary.cpp
index 585930427c..4357efaff3 100644
--- a/core/fpdfapi/parser/cpdf_dictionary.cpp
+++ b/core/fpdfapi/parser/cpdf_dictionary.cpp
@@ -194,10 +194,6 @@ bool CPDF_Dictionary::KeyExist(const ByteString& key) const {
   return pdfium::ContainsKey(m_Map, key);
 }
 
-bool CPDF_Dictionary::IsSignatureDict() const {
-  return CPDF_CryptoHandler::IsSignatureDictionary(this);
-}
-
 CPDF_Object* CPDF_Dictionary::SetFor(const ByteString& key,
                                      std::unique_ptr<CPDF_Object> pObj) {
   if (!pObj) {
diff --git a/core/fpdfapi/parser/cpdf_dictionary.h b/core/fpdfapi/parser/cpdf_dictionary.h
index 1876a610a2..7b839975a1 100644
--- a/core/fpdfapi/parser/cpdf_dictionary.h
+++ b/core/fpdfapi/parser/cpdf_dictionary.h
@@ -65,7 +65,6 @@ class CPDF_Dictionary final : public CPDF_Object {
   float GetFloatFor(const ByteString& key) const { return GetNumberFor(key); }
 
   bool KeyExist(const ByteString& key) const;
-  bool IsSignatureDict() const;
 
   // Set* functions invalidate iterators for the element with the key |key|.
   // Takes ownership of |pObj|, returns an unowned pointer to it.