remove 'widows' property because paged media support is gone so this does nothing now

sky/engine/core/rendering/style/StyleRareInheritedData.h

Index: sky/engine/core/rendering/style/StyleRareInheritedData.h
diff --git a/sky/engine/core/rendering/style/StyleRareInheritedData.h b/sky/engine/core/rendering/style/StyleRareInheritedData.h
index 92c68c7dbe86467e0f72010a07af3796c085ad52..c65bbe9b66671b8acfdf888996bce6ff88c8d699 100644
--- a/sky/engine/core/rendering/style/StyleRareInheritedData.h
+++ b/sky/engine/core/rendering/style/StyleRareInheritedData.h
@@ -106,10 +106,6 @@ public:
     // expressed by 'will-change: contents' includes descendants.
     unsigned m_subtreeWillChangeContents : 1;
 
-    // Paged media properties.
-    unsigned m_hasAutoWidows : 1;
-    short widows;
-
     short hyphenationLimitBefore;
     short hyphenationLimitAfter;
     short hyphenationLimitLines;