Delete --harmony-unicode flag

test/mjsunit/harmony/unicode-escapes.js

-// Copyright 2014 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// ES6 extends the \uxxxx escape and also allows \u{xxxxx}.
-
-// Flags: --harmony-unicode
-
-// Unicode escapes in variable names.
-
-(function TestVariableNames1() {
-  var foobar = 1;
-  assertEquals(foob\u0061r, 1);
-  assertEquals(foob\u{0061}r, 1);
-  assertEquals(foob\u{61}r, 1);
-  assertEquals(foob\u{0000000061}r, 1);
-})();
-
-(function TestVariableNames2() {
-  var foobar = 1;
-  assertEquals(\u0066oobar, 1);
-  assertEquals(\u{0066}oobar, 1);
-  assertEquals(\u{66}oobar, 1);
-  assertEquals(\u{0000000066}oobar, 1);
-})();
-
-// Unicode escapes in strings.
-
-(function TestStrings() {
-  var s1 = "foob\u0061r";
-  assertEquals(s1, "foobar");
-  var s2 = "foob\u{0061}r";
-  assertEquals(s2, "foobar");
-  var s3 = "foob\u{61}r";
-  assertEquals(s3, "foobar");
-  var s4 = "foob\u{0000000061}r";
-  assertEquals(s4, "foobar");
-})();
-
-
-(function TestSurrogates() {
-  // U+10E6D corresponds to the surrogate pair [U+D803, U+DE6D].
-  var s1 = "foo\u{10e6d}";
-  var s2 = "foo\u{d803}\u{de6d}";
-  assertEquals(s1, s2);
-})();