Re-enabling features-test.html for IE. The test was fixed in rev 19867

Review URL: http://codereview.chromium.org/155031

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20061 0039d316-1c4b-4281-b951-d872f2087c98

o3d/tests/selenium/javascript_unit_test_list.txt

@@ -60,7 +60,7 @@ small   event-test
 small   test-test
 small   serialization-test
 small   math-test
-small   features-test         except(*iexplore)
+small   features-test
 small   quaternion-test
 # TODO Temporarily removing until V8 bug is fixed
 small   v8-test