Remove the dependency on the "taxonomy_entity_index" module. [#3274024]

Problem/Motivation

The "taxonomy_entity_index" module is needed this to create indexes for all entities based on taxonomy, But we no longer need taxonomy_entity_index module.

Proposed resolution

Required core patch: https://www.drupal.org/project/drupal/issues/962664#comment-14446683

Issue fork content_release-3274024

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3274024_remove_taxonomy_entity_index changes, plain diff MR !5
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