Remove always-true --harmony-restrictive-declarations flag

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index e484c80203fe6e9b4817c3215cc18ee95a7887e3..02262b0c08a1138a35f9842b7f7777a9075ef262 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -3237,7 +3237,6 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_named_captures)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_property)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_function_sent)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_tailcalls)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_restrictive_declarations)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_string_padding)
 #ifdef V8_I18N_SUPPORT
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(datetime_format_to_parts)
@@ -3797,7 +3796,6 @@ bool Genesis::InstallExperimentalNatives() {
                                                nullptr};
   static const char* harmony_do_expressions_natives[] = {nullptr};
   static const char* harmony_regexp_lookbehind_natives[] = {nullptr};
-  static const char* harmony_restrictive_declarations_natives[] = {nullptr};
   static const char* harmony_regexp_named_captures_natives[] = {nullptr};
   static const char* harmony_regexp_property_natives[] = {nullptr};
   static const char* harmony_function_sent_natives[] = {nullptr};