Remove dead code from IfThenElse and StrictCompare in the compiler.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 2133 matching lines @@
 
   ComparisonInstr* comparison() const { return comparison_; }
   void SetComparison(ComparisonInstr* comp);
 
   bool is_checked() const { return is_checked_; }
 
   virtual LocationSummary* locs();
   virtual intptr_t DeoptimizationTarget() const;
   virtual Representation RequiredInputRepresentation(intptr_t i) const;
 
-  // A misleadingly named function for use in template functions that also
-  // replace definitions.  In this case, leave the branch intact and replace
-  // its comparison with another comparison that has been removed from the
-  // graph but still has uses properly linked into their definition's use
-  // list.
-  void ReplaceWith(ComparisonInstr* other,
-                   ForwardInstructionIterator* ignored);
-
   virtual Instruction* Canonicalize(FlowGraph* flow_graph);
 
   virtual void PrintTo(BufferFormatter* f) const;
 
   // Set compile type constrained by the comparison of this branch.
   // FlowGraphPropagator propagates it downwards into either true or false
   // successor.
   void set_constrained_type(ConstrainedCompileType* type) {
     constrained_type_ = type;
   }
@@ skipping 4759 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_