Delete blink code for scroll-blocks-on

Source/platform/graphics/GraphicsLayerClient.h

Index: Source/platform/graphics/GraphicsLayerClient.h
diff --git a/Source/platform/graphics/GraphicsLayerClient.h b/Source/platform/graphics/GraphicsLayerClient.h
index 8a29d17459ec29f00520a37b1dd62a17125261ca..26d6178b2f08ba51435a51130690dad08c515942 100644
--- a/Source/platform/graphics/GraphicsLayerClient.h
+++ b/Source/platform/graphics/GraphicsLayerClient.h
@@ -53,9 +53,8 @@ enum {
     LayerTreeIncludesPaintingPhases = 1 << 2,
     LayerTreeIncludesRootLayer = 1 << 3,
     LayerTreeIncludesClipAndScrollParents = 1 << 4,
-    LayerTreeIncludesScrollBlocksOn = 1 << 5,
-    LayerTreeIncludesPaintInvalidationObjects = 1 << 6,
-    LayerTreeIncludesCompositingReasons = 1 << 7,
+    LayerTreeIncludesPaintInvalidationObjects = 1 << 5,
+    LayerTreeIncludesCompositingReasons = 1 << 6,
 };
 typedef unsigned LayerTreeFlags;