chore: 移除游戏内天赋系统相关代码

1.  删除所有TalentType相关导入和天赋数据存储逻辑
2.  移除英雄属性天赋加成计算逻辑
3.  移除卡牌购买、刷新、售卖的天赋优惠逻辑
4.  将getTalentValue方法降级为空实现
5.  清理多余的空行代码格式

assets/script/game/map/MissionCardComp.ts

@@ -47,7 +47,6 @@ import { HeroViewComp } from "../hero/HeroViewComp";
 import { FacSet, FightSet } from "../common/config/GameSet";
 import { MoveComp } from "../hero/MoveComp";
 import { MissionHeroComp } from "./MissionHeroComp";
-import { TalentType } from "../common/config/TalentSet";
 import { MissionEconomy } from "./MissionEconomy";
 
 const { ccclass, property } = _decorator;