Problem/Motivation
Follow-up to #3035383-11: EntityListBuilder::createInstance() remove entity.manager dependency
The \Drupal\field_ui\EntityDisplayModeListBuilder does caching of all entity types definitions in protected property
Proposed resolution
Stop doing it and refactor it leveraging internal entity type manager caches
Remaining tasks
patch, commit
User interface changes
no
API changes
no
Data model changes
no
Release notes snippet
no