fix: allowEmpty for douyu

lib/routes/douyu/room.js

@@ -23,13 +23,12 @@ module.exports = async (ctx) => {
                 link: `https://www.douyu.com/${id}`,
             },
         ];
-    } else {
-        ctx.state.data.allowEmpty = true;
     }
 
     ctx.state.data = {
         title: `${data.owner_name}的斗鱼直播间`,
         link: `https://www.douyu.com/${id}`,
         item: item,
+        allowEmpty: true,
     };
 };