Remove runtime flags for Proxy and Reflect

test/mjsunit/es6/reflect-define-property.js

 // Copyright 2012-2015 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Tests the Reflect.defineProperty method - ES6 26.1.3
 // This is adapted from mjsunit/object-define-property.js.
 
-// Flags: --allow-natives-syntax --harmony-reflect
+// Flags: --allow-natives-syntax
 
 
 // Check that an exception is thrown when null is passed as object.
 var exception = false;
 try {
   Reflect.defineProperty(null, null, null);
 } catch (e) {
   exception = true;
   assertTrue(/called on non-object/.test(e));
 }
@@ skipping 1064 matching lines @@
 Assign(new C);
 
 // Test that changes to the prototype of a simple constructor are not ignored,
 // even after creating initial instances.
 function C() {
   this.x = 23;
 }
 assertEquals(23, new C().x);
 C.prototype.__defineSetter__('x', function(value) { this.y = 23; });
 assertEquals(void 0, new C().x);