打日志时清除不必要字段

Gameserver/Amfphp/base/Req.php

@@ -97,6 +97,7 @@ class Req extends Object_ext {
     public function __toString() {
         $clone = clone $this;
         unset($clone->userInfoChanged);                                         # 删除不必要的字段 
+        unset($clone->game);                                                    # 删除不必要的字段
         $str = JsonUtil::encode($clone);                                        # json
         return $str;
     }