Remove destructuring and default arguments runtime flags

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index bd04e59a6b5fe56f50c0e0270e32ccaa88b04eda..c7b7cc5abc8e26985dc7d6cc9418c4b80199f8d0 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -2265,9 +2265,6 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_modules)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy_function)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy_let)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_default_parameters)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_destructuring_bind)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_destructuring_assignment)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object_observe)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexps)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_unicode_regexps)
@@ -2970,11 +2967,8 @@ bool Genesis::InstallExperimentalNatives() {
   static const char* harmony_tailcalls_natives[] = {nullptr};
   static const char* harmony_unicode_regexps_natives[] = {
       "native harmony-unicode-regexps.js", nullptr};
-  static const char* harmony_default_parameters_natives[] = {nullptr};
   static const char* harmony_reflect_natives[] = {"native harmony-reflect.js",
                                                   nullptr};
-  static const char* harmony_destructuring_bind_natives[] = {nullptr};
-  static const char* harmony_destructuring_assignment_natives[] = {nullptr};
   static const char* harmony_object_observe_natives[] = {
       "native harmony-object-observe.js", nullptr};
   static const char* harmony_sharedarraybuffer_natives[] = {