Remove FX_GAMMA() and friends. They do nothing.

core/fxge/include/fx_ge.h

Index: core/fxge/include/fx_ge.h
diff --git a/core/fxge/include/fx_ge.h b/core/fxge/include/fx_ge.h
index 3c25e8ddd4da07f1884804d9369b5610a80fd621..5e9e841587f8b5853ccd4504b22525fc1d80a444 100644
--- a/core/fxge/include/fx_ge.h
+++ b/core/fxge/include/fx_ge.h
@@ -104,14 +104,7 @@ class CFX_ClipRgn {
 
   void IntersectMaskRect(FX_RECT rect, FX_RECT mask_box, CFX_DIBitmapRef Mask);
 };
-#define FX_GAMMA(value) (value)
-#define FX_GAMMA_INVERSE(value) (value)
-inline FX_ARGB ArgbGamma(FX_ARGB argb) {
-  return argb;
-}
-inline FX_ARGB ArgbGammaInverse(FX_ARGB argb) {
-  return argb;
-}
+
 class CFX_PathData {
  public:
   CFX_PathData();