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

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

-#include "SkPdfTransparencyGroupDictionary_autogen.h"
-
-std::string SkPdfTransparencyGroupDictionary::S() const {
-  std::string ret;
-  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "S", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return "";
-}
-
-std::string SkPdfTransparencyGroupDictionary::getCSAsName() const {
-  std::string ret = "";
-  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CS", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return "";
-}
-
-SkPdfArray* SkPdfTransparencyGroupDictionary::getCSAsArray() const {
-  SkPdfArray* ret = NULL;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CS", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}