诸侯混战：修复重复打开不同城门推送问题

game-server/app/services/guildActivity/cityActivityObj.ts

@@ -12,7 +12,6 @@ export class CityActivityObject {
     private members: Map<string, Array<Member>> = new Map(); // 每个军团参与的成员 guildCode => [{roleId, job}]
     private cities: Map<string, string[]> = new Map(); // 各个城池参与的军团 serverId&cityId => [guildCode]
     private guilds: Map<string, number> = new Map();  // 军团所在的城池 guildCode => cityId
-    private historyCity: Map<string, number> = new Map();  // 获取自己打开过的城池的页面 roleId => cityId
     private sentCity: string[] = [];
     private startTime: number = 0;
 
@@ -112,15 +111,6 @@ export class CityActivityObject {
         return { gateHp, maxHp: this.maxHp.get(key)||0 }
     }
 
-    public getHistoryCity(roleId: string) {
-        return this.historyCity.get(roleId)
-    }
-    
-    public setHistoryCity(roleId: string, cityId: number) {
-        return this.historyCity.set(roleId, cityId);
-    }
-
-
     public pushMembers(guildCode: string, roleId: string, job: number, code: string) {
 
         if(this.members.has(guildCode)) {