Revert "feat: add grade from Use ratings for flat AI room"

Author: hqer927

src/model/room/RoomUser.ts

@@ -29,12 +29,6 @@ export class RoomUserModel extends Content {
     })
     rtc_uid: string;
 
-    @Column({
-        default: -1,
-        type: "int",
-    })
-    grade: number;
-
     @Index("room_users_is_delete_index")
     @Column({
         default: false,

src/v1/controller/agora/Router.ts

@@ -3,16 +3,10 @@ import { GenerateRTM } from "./token/RTM";
 import { ControllerClass } from "../../../abstract/controller";
 import { MessageCallback } from "./message/Callback";
 import { RTMCensor } from "./rtm/censor";
-import { AgoraAIPing } from "./ai/ping";
-import { AgoraAIStart } from "./ai/start";
-import { AgoraAIStop } from "./ai/stop";
 
 export const agoraRouters: Readonly<Array<ControllerClass<any, any>>> = Object.freeze([
     GenerateRTC,
     GenerateRTM,
     MessageCallback,
     RTMCensor,
-    AgoraAIPing,
-    AgoraAIStart,
-    AgoraAIStop
 ]);