Remove support for legacy const, part 1

src/full-codegen/full-codegen.cc

Index: src/full-codegen/full-codegen.cc
diff --git a/src/full-codegen/full-codegen.cc b/src/full-codegen/full-codegen.cc
index 9e14f74682304a44045995805e449fda6ee9ce20..4bb0b4d1b7d7e446bc1435cf4b919bc108d8da06 100644
--- a/src/full-codegen/full-codegen.cc
+++ b/src/full-codegen/full-codegen.cc
@@ -980,13 +980,6 @@ void FullCodeGenerator::EmitBreak(Statement* target) {
   __ jmp(current->AsBreakable()->break_label());
 }
 
-void FullCodeGenerator::EmitIllegalRedeclaration() {
-  Comment cmnt(masm_, "[ Declarations");
-  Expression* illegal = scope()->GetIllegalRedeclaration();
-  SetExpressionAsStatementPosition(illegal);
-  VisitForEffect(illegal);
-}
-
 void FullCodeGenerator::VisitBreakStatement(BreakStatement* stmt) {
   Comment cmnt(masm_, "[ BreakStatement");
   SetStatementPosition(stmt);