Remove --harmony-numeric-literal flag

src/preparser.h

Index: src/preparser.h
diff --git a/src/preparser.h b/src/preparser.h
index 08963c942540f05f97a1893a5166b243522a56d7..92c762d36bcbbe4930bfac5fdeee1b1cae197a26 100644
--- a/src/preparser.h
+++ b/src/preparser.h
@@ -100,9 +100,6 @@ class ParserBase : public Traits {
     return allow_harmony_arrow_functions_;
   }
   bool allow_harmony_modules() const { return scanner()->HarmonyModules(); }
-  bool allow_harmony_numeric_literals() const {
-    return scanner()->HarmonyNumericLiterals();
-  }
   bool allow_harmony_classes() const { return scanner()->HarmonyClasses(); }
   bool allow_harmony_object_literals() const {
     return allow_harmony_object_literals_;
@@ -128,9 +125,6 @@ class ParserBase : public Traits {
   void set_allow_harmony_modules(bool allow) {
     scanner()->SetHarmonyModules(allow);
   }
-  void set_allow_harmony_numeric_literals(bool allow) {
-    scanner()->SetHarmonyNumericLiterals(allow);
-  }
   void set_allow_harmony_classes(bool allow) {
     scanner()->SetHarmonyClasses(allow);
   }