refactor(editor): cleanup dead code (#11893)

blocksuite/affine/all/src/__tests__/utils/get-provider.ts

@@ -1,14 +1,7 @@
 import { Container } from '@blocksuite/global/di';
 
-import {
-  registerBlockSpecs,
-  registerStoreSpecs,
-} from '../../extensions/register';
 import { testStoreExtensions } from './store';
 
-registerStoreSpecs();
-registerBlockSpecs();
-
 export function getProvider() {
   const container = new Container();
   const exts = testStoreExtensions;