Revert of Creating framework for drawShadowedPicture

src/core/SkPictureFlat.h

Index: src/core/SkPictureFlat.h
diff --git a/src/core/SkPictureFlat.h b/src/core/SkPictureFlat.h
index 17b76817fe8c517a4f172ceb043b896850eb4cff..125d4e95e84f9c60528ec39bfb6e92ad32d2e09d 100644
--- a/src/core/SkPictureFlat.h
+++ b/src/core/SkPictureFlat.h
@@ -17,13 +17,6 @@
 #include "SkPtrRecorder.h"
 #include "SkTDynamicHash.h"
 
-/*
- * Note: While adding new DrawTypes, it is necessary to add to the end of this list
- *       and update LAST_DRAWTYPE_ENUM to avoid having the code read older skps wrong.
- *       (which can cause segfaults)
- *
- *       Reordering can be done during version updates.
- */
 enum DrawType {
     UNUSED,
     CLIP_PATH,
@@ -90,9 +83,7 @@
 
     TRANSLATE_Z,
 
-    DRAW_SHADOWED_PICTURE_LIGHTS,
-
-    LAST_DRAWTYPE_ENUM = DRAW_SHADOWED_PICTURE_LIGHTS
+    LAST_DRAWTYPE_ENUM = TRANSLATE_Z
 };
 
 // In the 'match' method, this constant will match any flavor of DRAW_BITMAP*