[Example bug] Unnecessary module registration

[dhruvkb]

The nuxt.config.js file in the Nuxt example adds 'unplugin-vue2-script-setup/nuxt' in the modules:

https://github.com/antfu/unplugin-vue2-script-setup/blob/c3effd6148c441fadbc95d45ab249e19128911ff/examples/nuxt/nuxt.config.js#L8

This should not be necessary because it is automatically added:

https://github.com/nuxt-community/composition-api/blob/4c8d8c54984e2f6cf44ce459f8e3b9a8fca58485/src/module/index.ts#L103