types: remove entire types (#684)

src/handlers/guilds/GUILD_INTEGRATIONS_UPDATE.ts

@@ -1,8 +1,4 @@
 import { eventHandlers } from "../../bot.ts";
-import {
-  DiscordGuildIntegrationsUpdateEvent,
-  DiscordPayload,
-} from "../../types/mod.ts";
 import { cacheHandlers } from "../../cache.ts";
 
 export async function handleGuildIntegrationsUpdate(