Remove Sk48Dot16. No longer used.

include/core/SkFixed.h

Index: include/core/SkFixed.h
diff --git a/include/core/SkFixed.h b/include/core/SkFixed.h
index 1541e32105ff55cb995cfcbce4a3d2cf1ba5127c..b504f2f94cd17a53c446b3525d6cdc8a0b7d4d26 100644
--- a/include/core/SkFixed.h
+++ b/include/core/SkFixed.h
@@ -152,19 +152,4 @@ typedef int64_t SkFixed3232;   // 32.32
 
 #define SkScalarToFixed3232(x)    SkFloatToFixed3232(x)
 
-///////////////////////////////////////////////////////////////////////////////
-
-// 64bits wide, with a 16bit bias. Useful when accumulating lots of 16.16 so
-// we don't overflow along the way
-typedef int64_t Sk48Dot16;
-
-#define Sk48Dot16FloorToInt(x)    static_cast<int>((x) >> 16)
-
-static inline float Sk48Dot16ToScalar(Sk48Dot16 x) {
-    return static_cast<float>(x * 1.5258789e-5);  // x * (1.0f / (1 << 16))
-}
-#define SkFloatTo48Dot16(x)       (static_cast<Sk48Dot16>((x) * (1 << 16)))
-
-#define SkScalarTo48Dot16(x)      SkFloatTo48Dot16(x)
-
 #endif