Remove final instances of WritingMode in Sky.

sky/engine/core/rendering/RenderBlockFlow.cpp

Index: sky/engine/core/rendering/RenderBlockFlow.cpp
diff --git a/sky/engine/core/rendering/RenderBlockFlow.cpp b/sky/engine/core/rendering/RenderBlockFlow.cpp
index d68c9c6472193ee6f13fecfd6c71c682b4d91b6c..4de0580d0ac312a2cca9dd2f2949f9c05bf995b3 100644
--- a/sky/engine/core/rendering/RenderBlockFlow.cpp
+++ b/sky/engine/core/rendering/RenderBlockFlow.cpp
@@ -1206,12 +1206,6 @@ void RenderBlockFlow::clearFloats(EClear clear)
     // FIXME(sky): Remove this.
 }
 
-LayoutPoint RenderBlockFlow::flipFloatForWritingModeForChild(const FloatingObject* child, const LayoutPoint& point) const
-{
-    // FIXME(sky): Remove this.
-    return LayoutPoint();
-}
-
 LayoutUnit RenderBlockFlow::logicalLeftOffsetForPositioningFloat(LayoutUnit logicalTop, LayoutUnit fixedOffset, bool applyTextIndent, LayoutUnit* heightRemaining) const
 {
     // FIXME(sky): Remove this.