Revert of Implement flag and source getters on RegExp.prototype.

src/js/harmony-regexp.js

Index: src/js/harmony-regexp.js
diff --git a/src/js/harmony-regexp.js b/src/js/harmony-regexp.js
index a02aa7bda495356931974424cee242a170d90e6e..033ee2c9a513abecf05a9dbc4b67571fb3a3d516 100644
--- a/src/js/harmony-regexp.js
+++ b/src/js/harmony-regexp.js
@@ -11,7 +11,6 @@
 // -------------------------------------------------------------------
 // Imports
 
-var GetRegExpFlagGetter = utils.ImportNow("GetRegExpFlagGetter");
 var GlobalRegExp = global.RegExp;
 var MakeTypeError;
 
@@ -25,8 +24,7 @@
 // + https://bugs.ecmascript.org/show_bug.cgi?id=3423
 function RegExpGetFlags() {
   if (!IS_SPEC_OBJECT(this)) {
-    throw MakeTypeError(
-        kRegExpNonObject, "RegExp.prototype.flags", TO_STRING(this));
+    throw MakeTypeError(kFlagsGetterNonObject, TO_STRING(this));
   }
   var result = '';
   if (this.global) result += 'g';
@@ -41,11 +39,4 @@
                                  RegExpGetFlags, null, DONT_ENUM);
 %SetNativeFlag(RegExpGetFlags);
 
-%DefineGetterPropertyUnchecked(GlobalRegExp.prototype, "sticky",
-    GetRegExpFlagGetter("RegExp.prototype.sticky", REGEXP_STICKY_MASK),
-    DONT_ENUM);
-
-%DefineGetterPropertyUnchecked(GlobalRegExp.prototype, "unicode",
-    GetRegExpFlagGetter("RegExp.prototype.unicode", REGEXP_UNICODE_MASK),
-    DONT_ENUM);
 })