remove shadeSpan16 from shader

src/core/SkBitmapProcState_shaderproc.h

Index: src/core/SkBitmapProcState_shaderproc.h
diff --git a/src/core/SkBitmapProcState_shaderproc.h b/src/core/SkBitmapProcState_shaderproc.h
index b1fdc5f0562a373a399924e22f269c38a973d1cc..d41ff063e4dab72716ecb3be4e35c97f84c68678 100644
--- a/src/core/SkBitmapProcState_shaderproc.h
+++ b/src/core/SkBitmapProcState_shaderproc.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2011 Google Inc.
  *
@@ -12,11 +11,9 @@
 
 // Can't be static in the general case because some of these implementations
 // will be defined and referenced in different object files.
-void SCALE_FILTER_NAME(const void* sIn, int x, int y,
-                       DSTTYPE* SK_RESTRICT colors, int count);
+void SCALE_FILTER_NAME(const void* sIn, int x, int y, SkPMColor* SK_RESTRICT colors, int count);
 
-void SCALE_FILTER_NAME(const void* sIn, int x, int y,
-                       DSTTYPE* SK_RESTRICT colors, int count) {
+void SCALE_FILTER_NAME(const void* sIn, int x, int y, SkPMColor* SK_RESTRICT colors, int count) {
     const SkBitmapProcState& s = *static_cast<const SkBitmapProcState*>(sIn);
     SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
                              SkMatrix::kScale_Mask)) == 0);
@@ -85,7 +82,6 @@ void SCALE_FILTER_NAME(const void* sIn, int x, int y,
 #undef TILEY_LOW_BITS
 #undef MAKENAME
 #undef SRCTYPE
-#undef DSTTYPE
 #undef CHECKSTATE
 #undef SRC_TO_FILTER
 #undef FILTER_TO_DST