Remove term_entity_id column from wb_terms table when no longer needed on WMF cluster
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Description

When term_full_entity_id has been added to wb_terms table for test and production Wikidata, has been fully populated for existing data, and the new column is used for all reading and writing from the terms table, the old term_entity_id column is no longer needed and can be removed.

This operation would be performed by DBAs. This a ticket tracking related activities.