Revert "feat: import config from old domain"

This reverts commit 8d734dd876.

transfer-config.ts

@@ -1,53 +0,0 @@
-import {
-  ok,
-  notFound,
-  internalPeerError,
-  type InterWindowRequestWithId,
-  type RequestHandler,
-} from '@/interWindow';
-
-(() => {
-  const acceptableOrigins = [
-    window.location.origin,
-    'http://localhost:3000',
-    'http://localhost:12345',
-    'https://rabbit.syusui.net',
-  ];
-
-  const rawMessageHandler = (handler: RequestHandler) => (event: MessageEvent) => {
-    console.log('transfer-config: received request', event.data, event.origin);
-    if (!acceptableOrigins.includes(event.origin)) return;
-
-    const { origin, source } = event;
-    if (typeof event.data !== 'string') return;
-    const request = JSON.parse(event.data) as InterWindowRequestWithId;
-
-    let responseObj;
-    try {
-      responseObj = handler(request);
-    } catch (e) {
-      responseObj = internalPeerError(undefined);
-    }
-
-    const response = JSON.stringify({ requestId: request.requestId, ...responseObj });
-    // @ts-expect-error postMessage
-    source?.postMessage(response, origin);
-  };
-
-  window.addEventListener(
-    'message',
-    rawMessageHandler((request) => {
-      switch (request.type) {
-        case 'GET_CONFIG': {
-          const value = window.localStorage.getItem('RabbitConfig') ?? '';
-          return ok(value);
-        }
-        default:
-          return notFound();
-      }
-    }),
-    false,
-  );
-
-  console.log('transfer-config: mounted');
-})();