[cleanup] Remove dead code from DeclareLookupSlot and rename it

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index dddba9d23da6e118e7987e7f0e714f8b43929101..fe5e85164b198b80a471b23453dc8af54f782417 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -1135,11 +1135,9 @@ void AstGraphBuilder::VisitVariableDeclaration(VariableDeclaration* decl) {
       DCHECK(!hole_init);
       Node* name = jsgraph()->Constant(variable->name());
       Node* value = jsgraph()->ZeroConstant();  // Indicates no initial value.
-      Node* attr =
-          jsgraph()->Constant(variable->DeclarationPropertyAttributes());
       const Operator* op =
           javascript()->CallRuntime(Runtime::kDeclareLookupSlot);
-      Node* store = NewNode(op, name, value, attr);
+      Node* store = NewNode(op, name, value);
       PrepareFrameState(store, decl->proxy()->id());
       break;
     }
@@ -1178,11 +1176,9 @@ void AstGraphBuilder::VisitFunctionDeclaration(FunctionDeclaration* decl) {
       VisitForValue(decl->fun());
       Node* value = environment()->Pop();
       Node* name = jsgraph()->Constant(variable->name());
-      Node* attr =
-          jsgraph()->Constant(variable->DeclarationPropertyAttributes());
       const Operator* op =
           javascript()->CallRuntime(Runtime::kDeclareLookupSlot);
-      Node* store = NewNode(op, name, value, attr);
+      Node* store = NewNode(op, name, value);
       PrepareFrameState(store, decl->proxy()->id());
       break;
     }