Remove IFX_AdditionalFontMgr and IFX_FontMgrDelegate.

core/fxge/include/fx_font.h

Index: core/fxge/include/fx_font.h
diff --git a/core/fxge/include/fx_font.h b/core/fxge/include/fx_font.h
index 93c42fd3cb9c24408b6afed4ed735096e2ff9b58..48571332ae3c8297d800545535d37130acae0693 100644
--- a/core/fxge/include/fx_font.h
+++ b/core/fxge/include/fx_font.h
@@ -287,15 +287,6 @@ class CFX_FontMgr {
   FXFT_Library m_FTLibrary;
 };
 
-class IFX_AdditionalFontEnum {
- public:
-  virtual int CountFiles() = 0;
-  virtual IFX_FileStream* GetFontFile(int index) = 0;
-
- protected:
-  virtual ~IFX_AdditionalFontEnum() {}
-};
-
 class CFX_FontMapper {
  public:
   explicit CFX_FontMapper(CFX_FontMgr* mgr);