remove now all the files fro depot for PDF API since we generate them at build time

experimental/PdfViewer/pdfparser/podofo/autogen/SkPdfType6HalftoneDictionary_autogen.cpp

-#include "SkPdfType6HalftoneDictionary_autogen.h"
-
-std::string SkPdfType6HalftoneDictionary::Type() const {
-  std::string ret;
-  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return "";
-}
-
-long SkPdfType6HalftoneDictionary::HalftoneType() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "HalftoneType", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-std::string SkPdfType6HalftoneDictionary::HalftoneName() const {
-  std::string ret;
-  if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "HalftoneName", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return "";
-}
-
-long SkPdfType6HalftoneDictionary::Width() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Width", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-long SkPdfType6HalftoneDictionary::Height() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Height", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-SkPdfFunction SkPdfType6HalftoneDictionary::getTransferFunctionAsFunction() const {
-  SkPdfFunction ret = SkPdfFunction();
-  if (FunctionFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "TransferFunction", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return SkPdfFunction();
-}
-
-std::string SkPdfType6HalftoneDictionary::getTransferFunctionAsName() const {
-  std::string ret = "";
-  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "TransferFunction", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return "";
-}