Delete blink code for scroll-blocks-on

Source/core/layout/LayoutBox.cpp

Index: Source/core/layout/LayoutBox.cpp
diff --git a/Source/core/layout/LayoutBox.cpp b/Source/core/layout/LayoutBox.cpp
index 85a09953e31bb812f5783c5b460969d1c3ed16fa..61be63ffe87a8a4abd2d33c7d71d9a2a7acc6d46 100644
--- a/Source/core/layout/LayoutBox.cpp
+++ b/Source/core/layout/LayoutBox.cpp
@@ -107,15 +107,6 @@ DeprecatedPaintLayerType LayoutBox::layerTypeRequired() const
         || !style()->hasAutoZIndex() || style()->shouldCompositeForCurrentAnimations())
         return NormalDeprecatedPaintLayer;
 
-    // Ensure that explicit use of scroll-blocks-on creates a Layer (since we might need
-    // it to be composited).
-    if (style()->hasScrollBlocksOn()) {
-        if (isDocumentElement()) {
-            ASSERT(style()->scrollBlocksOn() == view()->style()->scrollBlocksOn());
-            return NoDeprecatedPaintLayer;
-        }
-        return NormalDeprecatedPaintLayer;
-    }
     if (hasOverflowClip())
         return OverflowClipDeprecatedPaintLayer;