The metric

elasticsearch_cluster_health_timed_out

was removed in

https://github.com/prometheus-community/elasticsearch_exporter/commit/320d8b38a541b25c804db648e0c074e9e003a014

per

https://github.com/prometheus-community/elasticsearch_exporter/issues/212



Signed-off-by: Frank Ritchie <12985912+fritchie@users.noreply.github.com>