[modules] Remove dead code.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index e7e79fbc7467a820485bfb0b4480c9585fcf75e8..77209cacb6a3e180f53472565043a3bdd2b4770b 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -8048,8 +8048,6 @@ class Module : public Struct {
   static const int kSize = kRequestedModulesOffset + kPointerSize;
 
  private:
-  enum { kEvaluatedBit };
-
   static void CreateExport(Handle<Module> module, int cell_index,
                            Handle<FixedArray> names);
   static void CreateIndirectExport(Handle<Module> module, Handle<String> name,