Remove StyleEngine::usesFirstLineRules().

sky/engine/core/rendering/RenderBlock.cpp

Index: sky/engine/core/rendering/RenderBlock.cpp
diff --git a/sky/engine/core/rendering/RenderBlock.cpp b/sky/engine/core/rendering/RenderBlock.cpp
index bd99cd42dae4ef23bbbc03593d04c5155e77f26d..8813de3f92c8e8d54067c6edfbd4ba5b4930bfe8 100644
--- a/sky/engine/core/rendering/RenderBlock.cpp
+++ b/sky/engine/core/rendering/RenderBlock.cpp
@@ -1577,9 +1577,7 @@ LayoutUnit RenderBlock::lineHeight(bool firstLine, LineDirectionMode direction,
     // just like a block.
     if (isReplaced() && linePositionMode == PositionOnContainingLine)
         return RenderBox::lineHeight(firstLine, direction, linePositionMode);
-
-    RenderStyle* s = style(firstLine && document().styleEngine()->usesFirstLineRules());
-    return s->computedLineHeight();
+    return style()->computedLineHeight();
 }
 
 int RenderBlock::beforeMarginInLineDirection(LineDirectionMode direction) const