Fix memory leak in IE7 jQuery.remove()

ie7gc.js

  if ($.browser.msie && $.browser.version <= 7) {
    (function () {
      $.fn.originalRemove = $.fn.remove;
      $.fn.remove = function (selector) {
        this.originalRemove(selector);
        for (var k in this) {
          delete this[k];
        }
      };
    })(jQuery);
  }