优化区服预告区服选择

Application/Admin/Controller/ServerNoticeController.class.php

@@ -262,13 +262,9 @@ class ServerNoticeController extends ThinkController {
         $game_map = [];
         if ($game_name) {
             $game_map['relation_game_name'] = $game_name;
-        }else {
-            $this->AjaxReturn([]);
         }
         if ($sdk_version) {
             $map['server_version'] = $game_map['sdk_version'] = $sdk_version;
-        }else {
-            $this->AjaxReturn([]);
         }
         $game = M("Game", 'tab_')->where($game_map)->getField('id', true);