Removing unused variables for parent in FocusCandidate

Source/core/page/SpatialNavigation.h

Index: Source/core/page/SpatialNavigation.h
diff --git a/Source/core/page/SpatialNavigation.h b/Source/core/page/SpatialNavigation.h
index 2fef4da6ab93d891e3cfa9cac3cc1332d690dc4d..193de78a9f5c779e0e6d92547a2ba204ed7483db 100644
--- a/Source/core/page/SpatialNavigation.h
+++ b/Source/core/page/SpatialNavigation.h
@@ -103,9 +103,7 @@ struct FocusCandidate {
         , focusableNode(0)
         , enclosingScrollableBox(0)
         , distance(maxDistance())
-        , parentDistance(maxDistance())
         , alignment(None)
-        , parentAlignment(None)
         , isOffscreen(true)
         , isOffscreenAfterScrolling(true)
     {
@@ -125,9 +123,7 @@ struct FocusCandidate {
     Node* focusableNode;
     Node* enclosingScrollableBox;
     long long distance;
-    long long parentDistance;
     RectsAlignment alignment;
-    RectsAlignment parentAlignment;
     LayoutRect rect;
     bool isOffscreen;
     bool isOffscreenAfterScrolling;