block not showing for anonymous users

I deleted these two functions from the src/plugin/block code and now anonymous viewers can see it.

/**
* {@inheritdoc}
*/
public function getCacheTags() {
return Cache::mergeTags(parent::getCacheTags(), [
'social_media:' . $this->currentPath->getPath(),
'config:social_media.settings',
]);
}

/**
* {@inheritdoc}
*/
public function getCacheContexts() {
return Cache::mergeContexts(parent::getCacheContexts(), ['url.path']);
}