4f linear gradient shader blitters

src/core/SkPixmap.cpp

Index: src/core/SkPixmap.cpp
diff --git a/src/core/SkPixmap.cpp b/src/core/SkPixmap.cpp
index f7672d082f0e3ca99024bf1a99c6d5b449875efb..9875ae4ce016a44049ff4a9939193b4a69661b0b 100644
--- a/src/core/SkPixmap.cpp
+++ b/src/core/SkPixmap.cpp
@@ -211,12 +211,6 @@ bool SkPixmap::erase(SkColor color, const SkIRect& inArea) const {
 #include "SkNx.h"
 #include "SkHalf.h"
 
-static void sk_memset64(uint64_t dst[], uint64_t value, int count) {
-    for (int i = 0; i < count; ++i) {
-        dst[i] = value;
-    }
-}
-
 bool SkPixmap::erase(const SkColor4f& origColor, const SkIRect* subset) const {
     SkPixmap pm;
     if (subset) {