Turn a couple functions that always return true to return void.

core/include/fxge/fx_font.h

Index: core/include/fxge/fx_font.h
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h
index b38b1a171359039f4f1df8fd702763d87970f6aa..8f6db1eb8b92c115337eee23b3024bcd2db3a036 100644
--- a/core/include/fxge/fx_font.h
+++ b/core/include/fxge/fx_font.h
@@ -60,13 +60,13 @@ class CFX_Font {
   CFX_Font();
   ~CFX_Font();
 
-  FX_BOOL LoadSubst(const CFX_ByteString& face_name,
-                    FX_BOOL bTrueType,
-                    FX_DWORD flags,
-                    int weight,
-                    int italic_angle,
-                    int CharsetCP,
-                    FX_BOOL bVertical = FALSE);
+  void LoadSubst(const CFX_ByteString& face_name,
+                 FX_BOOL bTrueType,
+                 FX_DWORD flags,
+                 int weight,
+                 int italic_angle,
+                 int CharsetCP,
+                 FX_BOOL bVertical = FALSE);
   FX_BOOL LoadEmbedded(const uint8_t* data, FX_DWORD size);
   FXFT_Face GetFace() const { return m_Face; }
   const CFX_SubstFont* GetSubstFont() const { return m_pSubstFont; }