Remove unnecessary includes from LayoutBlockFlowLine.cpp

third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp b/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
index c3e2f3fbb04d0b9bafb300f3a41e805723bf8f9e..f5354e614be77d918b0e7dcbdce5179ae1a74b08 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
@@ -39,14 +39,10 @@
 #include "core/layout/svg/line/SVGRootInlineBox.h"
 #include "platform/text/BidiResolver.h"
 #include "platform/text/Character.h"
-#include "wtf/StdLibExtras.h"
 #include "wtf/Vector.h"
-#include "wtf/text/CharacterNames.h"
 
 namespace blink {
 
-using namespace WTF::Unicode;
-
 class ExpansionOpportunities {
  public:
   ExpansionOpportunities() : m_totalOpportunities(0) {}