feat(core): remove preview footnote hover effect config (#11695)

Close [BS-3115](https://linear.app/affine-design/issue/BS-3115/侧边栏-footnote-ui-和用户行为与编辑器内统一)

packages/frontend/core/src/blocksuite/extensions/footnote-config.ts

@@ -1,15 +0,0 @@
-import { FootNoteNodeConfigExtension } from '@blocksuite/affine/inlines/footnote';
-import type { SpecBuilder } from '@blocksuite/affine/shared/utils';
-
-// Disable hover effect for footnote node
-const disableHoverEffectConfig = {
-  disableHoverEffect: true,
-};
-
-export function enableFootnoteConfigExtension(
-  specBuilder: SpecBuilder,
-  config = disableHoverEffectConfig
-) {
-  const footNoteConfig = FootNoteNodeConfigExtension(config);
-  return specBuilder.extend([footNoteConfig]);
-}

packages/frontend/core/src/blocksuite/extensions/index.ts

@@ -1,3 +1,2 @@
 export * from './entry/enable-affine';
 export * from './entry/enable-mobile';
-export * from './footnote-config';