Remove --harmony-regexps flag

test/mjsunit/harmony/regexp-flags.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.
-
-// Flags: --harmony-regexps --harmony-unicode-regexps
-
-RegExp.prototype.flags = 'setter should be undefined';
-
-assertEquals('', RegExp('').flags);
-assertEquals('', /./.flags);
-assertEquals('gimuy', RegExp('', 'yugmi').flags);
-assertEquals('gimuy', /foo/yumig.flags);
-
-var descriptor = Object.getOwnPropertyDescriptor(RegExp.prototype, 'flags');
-assertTrue(descriptor.configurable);
-assertFalse(descriptor.enumerable);
-assertInstanceof(descriptor.get, Function);
-assertEquals(undefined, descriptor.set);
-
-function testGenericFlags(object) {
-  return descriptor.get.call(object);
-}
-
-assertEquals('', testGenericFlags({}));
-assertEquals('i', testGenericFlags({ ignoreCase: true }));
-assertEquals('uy', testGenericFlags({ global: 0, sticky: 1, unicode: 1 }));
-assertEquals('m', testGenericFlags({ __proto__: { multiline: true } }));
-assertThrows(function() { testGenericFlags(); }, TypeError);
-assertThrows(function() { testGenericFlags(undefined); }, TypeError);
-assertThrows(function() { testGenericFlags(null); }, TypeError);
-assertThrows(function() { testGenericFlags(true); }, TypeError);
-assertThrows(function() { testGenericFlags(false); }, TypeError);
-assertThrows(function() { testGenericFlags(''); }, TypeError);
-assertThrows(function() { testGenericFlags(42); }, TypeError);
-
-var counter = 0;
-var map = {};
-var object = {
-  get global() {
-    map.g = counter++;
-  },
-  get ignoreCase() {
-    map.i = counter++;
-  },
-  get multiline() {
-    map.m = counter++;
-  },
-  get unicode() {
-    map.u = counter++;
-  },
-  get sticky() {
-    map.y = counter++;
-  }
-};
-testGenericFlags(object);
-assertEquals({ g: 0, i: 1, m: 2, u: 3, y: 4 }, map);