修复sale数据错误的bug

Code Review By Rock Zhang

@@ -178,9 +178,6 @@ class NewsaleController extends AbstractAction
             $size = $this->get('size', null);
             $price = $this->get('price', null);
             $p_d = $this->get('discount', null);
-	        if ($p_d !== null) {
-		        $p_d = '0.1,0.3';
-	        }
             $dayLimit = $this->get('dayLimit', null);
             $limit = $this->get('limit', 60);
             $page = $this->get('page', 1);