Minor Remove our ad hoc H2 fulltext indexing (H2Fulltext) because it's an additional maintenance burden, has a dependency on Lucene so requires changes when Lucene is upgraded, and causes random bugs after the H2 upgrade of NXP-28956.
An attempt to keep the very simple native H2 non-Lucene fulltext search for minimal coverage failed, as this implementation throws exception when used in concurrency. We therefore completely remove H2 fulltext support.
In production anyway we don't use H2, as Elasticsearch is the backend actually used for fulltext searches.
