Revert of New GM that exercises gamma-correctness in various parts of the pipeline.

src/core/SkSpriteBlitter_ARGB32.cpp

Index: src/core/SkSpriteBlitter_ARGB32.cpp
diff --git a/src/core/SkSpriteBlitter_ARGB32.cpp b/src/core/SkSpriteBlitter_ARGB32.cpp
index 0e3cc1a3afe3ede8e991e417f18a3cb8ab58b22f..93885996ea4e7a1490c7862028440cf952d924b8 100644
--- a/src/core/SkSpriteBlitter_ARGB32.cpp
+++ b/src/core/SkSpriteBlitter_ARGB32.cpp
@@ -254,8 +254,8 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkSpriteBlitter* SkSpriteBlitter::ChooseLegacy32(const SkPixmap& source, const SkPaint& paint,
-                                                 SkTBlitterAllocator* allocator) {
+SkSpriteBlitter* SkSpriteBlitter::ChooseL32(const SkPixmap& source, const SkPaint& paint,
+                                            SkTBlitterAllocator* allocator) {
     SkASSERT(allocator != nullptr);
 
     if (paint.getMaskFilter() != nullptr) {