Removing a bunch of unused platform code.

Source/WebCore/rendering/RenderObject.cpp

Index: Source/WebCore/rendering/RenderObject.cpp
diff --git a/Source/WebCore/rendering/RenderObject.cpp b/Source/WebCore/rendering/RenderObject.cpp
index ab9c1c9398f7a86949619bf5af3f59a7cc66e56b..416342de19e1df311f7284540c1f70597467cece 100644
--- a/Source/WebCore/rendering/RenderObject.cpp
+++ b/Source/WebCore/rendering/RenderObject.cpp
@@ -1924,10 +1924,7 @@ void RenderObject::styleWillChange(StyleDifference diff, const RenderStyle* newS
         // when scrolling a page with a fixed background image. As an optimization, assuming there are
         // no fixed positoned elements on the page, we can acclerate scrolling (via blitting) if we
         // ignore the CSS property "background-attachment: fixed".
-#if PLATFORM(QT)
-        if (view()->frameView()->delegatesScrolling())
-#endif
-            shouldBlitOnFixedBackgroundImage = true;
+        shouldBlitOnFixedBackgroundImage = true;
 #endif
 
         bool newStyleSlowScroll = newStyle && !shouldBlitOnFixedBackgroundImage && newStyle->hasFixedBackgroundImage();