Remove support for legacy const, part 1

src/full-codegen/full-codegen.h

Index: src/full-codegen/full-codegen.h
diff --git a/src/full-codegen/full-codegen.h b/src/full-codegen/full-codegen.h
index f2d0f63fcbae4f94515b10b2f7c4cdc79d1bed8e..1252264d02c5c56a7d80024cd2c0776a08ad0e47 100644
--- a/src/full-codegen/full-codegen.h
+++ b/src/full-codegen/full-codegen.h
@@ -693,8 +693,6 @@ class FullCodeGenerator: public AstVisitor {
   void EmitContinue(Statement* target);
   void EmitBreak(Statement* target);
 
-  void EmitIllegalRedeclaration();
-
   // Loop nesting counter.
   int loop_depth() { return loop_depth_; }
   void increment_loop_depth() { loop_depth_++; }