chore: remove eslint-plugin-unused-imports (#9160)

`no-unused-vars` is enough

packages/frontend/track/src/mixpanel.ts

@@ -1,4 +1,4 @@
-// eslint-disable-next-line @typescript-eslint/no-unused-vars, unused-imports/no-unused-imports
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 import { DebugLogger } from '@affine/debug';
 import type { OverridedMixpanel } from 'mixpanel-browser';
 import mixpanelBrowser from 'mixpanel-browser';