Delete --harmony-computed-property-names flag

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 711c9ef8d160a68e3702189b7b6eee1c39665935..6a0838e067091c62390bc5412631004cf15857f2 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -913,8 +913,6 @@ Parser::Parser(ParseInfo* info)
   set_allow_harmony_arrow_functions(FLAG_harmony_arrow_functions);
   set_allow_harmony_sloppy(FLAG_harmony_sloppy);
   set_allow_harmony_sloppy_let(FLAG_harmony_sloppy_let);
-  set_allow_harmony_computed_property_names(
-      FLAG_harmony_computed_property_names);
   set_allow_harmony_rest_parameters(FLAG_harmony_rest_parameters);
   set_allow_harmony_spreadcalls(FLAG_harmony_spreadcalls);
   set_allow_harmony_destructuring(FLAG_harmony_destructuring);
@@ -4492,7 +4490,6 @@ PreParser::PreParseResult Parser::ParseLazyFunctionBodyWithPreParser(
     SET_ALLOW(harmony_arrow_functions);
     SET_ALLOW(harmony_sloppy);
     SET_ALLOW(harmony_sloppy_let);
-    SET_ALLOW(harmony_computed_property_names);
     SET_ALLOW(harmony_rest_parameters);
     SET_ALLOW(harmony_spreadcalls);
     SET_ALLOW(harmony_destructuring);