Cleanup dead code in CPDF_DIBSource::LoadJpxBitmap() and friends.

core/src/fxcodec/codec/codec_int.h

Index: core/src/fxcodec/codec/codec_int.h
diff --git a/core/src/fxcodec/codec/codec_int.h b/core/src/fxcodec/codec/codec_int.h
index 4bcdeed7ad1f8e92a9465f8d8cb8497c5cf9948e..585e09635f3ec7aa1f4278e68b1d255c6b8225f5 100644
--- a/core/src/fxcodec/codec/codec_int.h
+++ b/core/src/fxcodec/codec/codec_int.h
@@ -247,20 +247,22 @@ class CCodec_IccModule : public ICodec_IccModule {
 class CCodec_JpxModule : public ICodec_JpxModule {
  public:
   CCodec_JpxModule();
+  ~CCodec_JpxModule() override;
+
+  // ICodec_JpxModule:
   void* CreateDecoder(const uint8_t* src_buf,
                       FX_DWORD src_size,
-                      FX_BOOL useColorSpace = FALSE);
+                      FX_BOOL useColorSpace) override;
   void GetImageInfo(void* ctx,
-                    FX_DWORD& width,
-                    FX_DWORD& height,
-                    FX_DWORD& codestream_nComps,
-                    FX_DWORD& output_nComps);
+                    FX_DWORD* width,
+                    FX_DWORD* height,
+                    FX_DWORD* codestream_nComps,
+                    FX_DWORD* output_nComps) override;
   FX_BOOL Decode(void* ctx,
                  uint8_t* dest_data,
                  int pitch,
-                 FX_BOOL bTranslateColor,
-                 uint8_t* offsets);
-  void DestroyDecoder(void* ctx);
+                 uint8_t* offsets) override;
+  void DestroyDecoder(void* ctx) override;
 };
 
 class CPDF_Jbig2Interface : public CJBig2_Module {