First past at removing writing mode.

sky/engine/platform/LengthBox.cpp

Index: sky/engine/platform/LengthBox.cpp
diff --git a/sky/engine/platform/LengthBox.cpp b/sky/engine/platform/LengthBox.cpp
index 5afe9d2a0bced38f3d15d19de31b81009b38ba04..396fcc4cfb9ab5bdd0c82b519ad24e68368eabc9 100644
--- a/sky/engine/platform/LengthBox.cpp
+++ b/sky/engine/platform/LengthBox.cpp
@@ -45,33 +45,13 @@ const Length& LengthBox::logicalRight(WritingMode writingMode) const
 
 const Length& LengthBox::before(WritingMode writingMode) const
 {
-    switch (writingMode) {
-    case TopToBottomWritingMode:
-        return m_top;
-    case BottomToTopWritingMode:
-        return m_bottom;
-    case LeftToRightWritingMode:
-        return m_left;
-    case RightToLeftWritingMode:
-        return m_right;
-    }
-    ASSERT_NOT_REACHED();
+    // FIXME(sky): Remove
     return m_top;
 }
 
 const Length& LengthBox::after(WritingMode writingMode) const
 {
-    switch (writingMode) {
-    case TopToBottomWritingMode:
-        return m_bottom;
-    case BottomToTopWritingMode:
-        return m_top;
-    case LeftToRightWritingMode:
-        return m_right;
-    case RightToLeftWritingMode:
-        return m_left;
-    }
-    ASSERT_NOT_REACHED();
+    // FIXME(sky): Remove
     return m_bottom;
 }