Revert of Make SkPicture/SkImageGenerator default to SkCodec

src/core/SkPicture.cpp

Index: src/core/SkPicture.cpp
diff --git a/src/core/SkPicture.cpp b/src/core/SkPicture.cpp
index 04f2f93ba73ea3270e43aa4e77c4502f9538081a..8247336d49e96d3d7698dbb8bdaf61a1a9498b41 100644
--- a/src/core/SkPicture.cpp
+++ b/src/core/SkPicture.cpp
@@ -6,7 +6,6 @@
  */
 
 #include "SkAtomics.h"
-#include "SkImageGenerator.h"
 #include "SkMessageBus.h"
 #include "SkPicture.h"
 #include "SkPictureData.h"
@@ -139,16 +138,6 @@
     return r.endRecording();
 }
 
-static bool default_install(const void* src, size_t length, SkBitmap* dst) {
-    SkAutoTUnref<SkData> encoded(SkData::NewWithCopy(src, length));
-    return encoded && SkDEPRECATED_InstallDiscardablePixelRef(
-            SkImageGenerator::NewFromEncoded(encoded), dst);
-}
-
-SkPicture* SkPicture::CreateFromStream(SkStream* stream) {
-    return CreateFromStream(stream, &default_install, nullptr);
-}
-
 SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc proc) {
     return CreateFromStream(stream, proc, nullptr);
 }