Revert of add backdrop option to SaveLayerRec

samplecode/SampleApp.cpp

Index: samplecode/SampleApp.cpp
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index c7a37e786cd6e163f7026a4f5a47684f29a5552b..d200e295fb3a4fbfb97414548cc03ab51d475938 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -1396,15 +1396,6 @@
 
     if (fUseMPD) {
         SkAutoTUnref<const SkPicture> picture(fRecorder.endRecording());
-
-        if (false) {
-            SkDynamicMemoryWStream wstream;
-            picture->serialize(&wstream);
-
-            SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
-            picture.reset(SkPicture::CreateFromStream(rstream));
-        }
-
         if (true) {
             if (true) {
                 SkImageInfo info;