修复bind错误。review by luliang。

@@ -25,7 +25,6 @@ import YH_Image from '../../../common/components/YH_Image';
 export default class HotCategoryIndividualization extends Component {
     constructor(props) {
         super(props);
-        this._renderRow = this._renderRow.bind(this);
         this.dataSource = new ListView.DataSource({
             rowHasChanged: (r1, r2) => !Immutable.is(r1, r2),
         });