Revert of Stop flattening GrCoordTransforms in parent GrFragmentProcessors.

src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp

Index: src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp
diff --git a/src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp b/src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp
index 5ae28a0bbc50012f6727a74471f0c30f71e237b3..c19239a5d54c3a3904e8026dc9dcdabd14a42379 100644
--- a/src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp
+++ b/src/gpu/glsl/GrGLSLPrimitiveProcessor.cpp
@@ -47,16 +47,3 @@
                                                &stagedLocalVarName);
     fragBuilder->codeAppendf("%s = %s;", outputName, stagedLocalVarName);
 }
-
-//////////////////////////////////////////////////////////////////////////////
-
-const GrCoordTransform* GrGLSLPrimitiveProcessor::FPCoordTransformHandler::nextCoordTransform() {
-#ifdef SK_DEBUG
-    SkASSERT(nullptr == fCurr || fAddedCoord);
-    fAddedCoord = false;
-    fCurr = fIter.next();
-    return fCurr;
-#else
-    return fIter.next();
-#endif
-}