Remove special case gpu transforms for Identity and Translate

src/gpu/gl/GrGLProgramEffects.h

Index: src/gpu/gl/GrGLProgramEffects.h
diff --git a/src/gpu/gl/GrGLProgramEffects.h b/src/gpu/gl/GrGLProgramEffects.h
index 48d01c8ad7c34a0a3ada6e149bda80d7b8d665fc..769c7a133006fa5df49f21383cc9546caab29e96 100644
--- a/src/gpu/gl/GrGLProgramEffects.h
+++ b/src/gpu/gl/GrGLProgramEffects.h
@@ -200,7 +200,6 @@ private:
     struct Transform {
         Transform() { fCurrentValue = SkMatrix::InvalidMatrix(); }
         UniformHandle fHandle;
-        GrSLType      fType;
         SkMatrix      fCurrentValue;
     };