Remove --harmony-for-in flag which is always false

test/mjsunit/for-in.js

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-// Flags: --noharmony-for-in
-
 function props(x) {
   var array = [];
   for (var p in x) array.push(p);
   return array;
 }
 
 (function forInBasic() {
   assertEquals(0, props({}).length, "olen0");
   assertEquals(1, props({x:1}).length, "olen1");
   assertEquals(2, props({x:1, y:2}).length, "olen2");
@@ skipping 191 matching lines @@
     assertUnreachable();
   }
 })();
 
 (function testNonEnumerableSloppyArgumentsIndex(a) {
   Object.defineProperty(arguments, 0, {enumerable:false});
   for (var k in arguments) {
     assertUnreachable();
   }
 })(true);