Open
Description
In Elasticsearch 6.6.0, we introduced a new indexing strategy of geo_shape field mapper based on Lucene's bkd tree: #35320
From Elasticsearch 8.0.0, we don't allow to create new geo_shape mapping using the legacy indexing strategy using prefix trees: #70850
This legacy indexing strategy lives in the legacy-geo module/. This issue is to track the removal of the module because at the moment it is there only to support old indices. At some point those indices might be too old so the module can be removed.