I have upgraded a website to drupal 8 that I found a field created and I need to delete that field as it became useless.
The field is locked, and this prevents me delete it from the interface.
I tried to delete it using
field_purge_field(), but it didn't work either.
The answer for How to properly delete fields, programmatically? didn't work for me.
Edit: I tried that piece of code but didn't do any thing
$field = \Drupal::entityManager()->getStorage('field_config')->load($entity_type.$bundle_name.$field_machine_name); field_purge_field($field);
How do I delete fields that result locked? How do I unlock them before deleting them?