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

experimental/PdfViewer/pdfparser/podofo/autogen/SkPdfType1ShadingDictionary_autogen.cpp

-#include "SkPdfType1ShadingDictionary_autogen.h"
-
-SkPdfArray* SkPdfType1ShadingDictionary::Domain() const {
-  SkPdfArray* ret;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}
-
-SkPdfArray* SkPdfType1ShadingDictionary::Matrix() const {
-  SkPdfArray* ret;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Matrix", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}
-
-SkPdfFunction SkPdfType1ShadingDictionary::Function() const {
-  SkPdfFunction ret;
-  if (FunctionFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return SkPdfFunction();
-}