diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index a27c8d2..503d593 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -114,10 +114,6 @@ void Room::UnInit()
         delete pair.second;
     }
     later_add_hash_.clear();
-    for (auto& pair : removed_robot_hash_) {
-        delete pair.second;
-    }
-    removed_robot_hash_.clear();
     grid_service.UnInit();
     map_service.UnInit();
 }
@@ -909,37 +905,6 @@ void Room::AddObjectLater(Entity* entity)
                                      &entity->xtimer_attacher.timer_list_);
 }
 
-void Room::RandRemoveAndroid()
-{
-    Human* hum = nullptr;
-    for (auto& pair : human_hash_) {
-        if (pair.second->entity_subtype == kEST_Android) {
-            hum = pair.second;
-            break;
-        }
-    }
-    if (hum) {
-        if (hum->team_id != 0) {
-            team_hash_.erase(hum->team_id);
-        }
-        for (auto& cell : hum->grid_list) {
-            for (Human* target : cell->human_list) {
-                target->AddOutObjects(hum);
-            }
-            cell->human_list.erase(hum);
-        }
-        born_point_human_hash_.erase(hum->born_point);
-        moveable_hash_.erase(hum->entity_uniid);
-        uniid_hash_.erase(hum->entity_uniid);
-        human_hash_.erase(hum->entity_uniid);
-        removed_robot_hash_[hum->entity_uniid] = hum;
-        --alive_count_;
-        for (auto& pair : human_hash_) {
-            pair.second->RemovePartObjects(hum);
-        }
-    }
-}
-
 void Room::NotifyUiUpdate()
 {
     xtimer.AddDeadLineTimerAndAttach(0,
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 8ce4b80..b8b98b1 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -126,7 +126,6 @@ private:
     Obstacle* InternalCreateObstacle(int id, float x, float y,
                                      std::function<void (Obstacle*)> on_precreate);
     void AddObjectLater(Entity* entity);
-    void RandRemoveAndroid();
     void NotifyUiUpdate();
     void NotifyWxVoip();
     void BattleReport();
@@ -148,7 +147,6 @@ private:
     std::vector<MetaData::MapTplThing>* born_points_ = nullptr;
     xtimer_list* battle_report_timer_ = nullptr;
 
-    std::set<int> refreshed_robot_set_;
     std::map<int, std::set<Human*>> team_hash_;
     std::map<std::string, Player*> accountid_hash_;
     std::map<int, Entity*> moveable_hash_;
@@ -157,7 +155,5 @@ private:
     std::map<int, Human*> human_hash_;
 
     std::map<int, std::set<int>> airdrop_hash_;
-    std::map<int, Human*> removed_robot_hash_;
-
     std::map<std::string, RoomMember> members_hash_;
 };