Revert "Eliminatable CheckMaps replaced with if(true) or if(false)."

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index cb99b555f5044ba5fa62df089d185944294c28fe..22394dcb5546dc1deea36ae7df8cd93757f85c6a 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -114,8 +114,6 @@ class HBasicBlock V8_FINAL : public ZoneObject {
   bool Dominates(HBasicBlock* other) const;
   int LoopNestingDepth() const;
 
-  void ReplaceControlWithGotoSuccessor(int succ);
-
   void SetInitialEnvironment(HEnvironment* env);
   void ClearEnvironment() {
     ASSERT(IsFinished());
@@ -202,7 +200,6 @@ class HBasicBlock V8_FINAL : public ZoneObject {
                        int position);
 
  private:
-  void MarkSuccEdgeUnreachable(int succ);
   void RegisterPredecessor(HBasicBlock* pred);
   void AddDominatedBlock(HBasicBlock* block);