Remove support for legacy const, part 1

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index c2b70cf3c328abc2d0a3149c0bad2a1b08646d06..f54333ff1f5fd56bf57a23b374c5e0abf57a921d 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -563,12 +563,6 @@ bool AstNumberingVisitor::Finish(FunctionLiteral* node) {
 
 bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
   Scope* scope = node->scope();
-
-  if (scope->HasIllegalRedeclaration()) {
-    Visit(scope->GetIllegalRedeclaration());
-    DisableOptimization(kFunctionWithIllegalRedeclaration);
-    return Finish(node);
-  }
   if (scope->new_target_var()) DisableCrankshaft(kSuperReference);
   if (scope->calls_eval()) DisableOptimization(kFunctionCallsEval);
   if (scope->arguments() != NULL && !scope->arguments()->IsStackAllocated()) {