Remove page-break properties and captions

sky/engine/core/rendering/RootInlineBox.h

Index: sky/engine/core/rendering/RootInlineBox.h
diff --git a/sky/engine/core/rendering/RootInlineBox.h b/sky/engine/core/rendering/RootInlineBox.h
index 6973c39102626fefccdaf6b2033db06892c7cc50..4b8316a503df12e495bd07f22ddd04dd0e7cde31 100644
--- a/sky/engine/core/rendering/RootInlineBox.h
+++ b/sky/engine/core/rendering/RootInlineBox.h
@@ -54,9 +54,6 @@ public:
     LayoutUnit lineTopWithLeading() const { return m_lineTopWithLeading; }
     LayoutUnit lineBottomWithLeading() const { return m_lineBottomWithLeading; }
 
-    bool isFirstAfterPageBreak() const { return m_fragmentationData ? m_fragmentationData->m_isFirstAfterPageBreak : false; }
-    void setIsFirstAfterPageBreak(bool isFirstAfterPageBreak) { ensureLineFragmentationData()->m_isFirstAfterPageBreak = isFirstAfterPageBreak; }
-
     LayoutUnit paginatedLineWidth() const { return m_fragmentationData ? m_fragmentationData->m_paginatedLineWidth : LayoutUnit(0); }
     void setPaginatedLineWidth(LayoutUnit width) { ensureLineFragmentationData()->m_paginatedLineWidth = width; }
 
@@ -197,13 +194,11 @@ private:
     public:
         LineFragmentationData()
             : m_paginatedLineWidth(0)
-            , m_isFirstAfterPageBreak(false)
         {
 
         }
 
         LayoutUnit m_paginatedLineWidth;
-        bool m_isFirstAfterPageBreak;
     };
 
     OwnPtr<LineFragmentationData> m_fragmentationData;