Delete action is not performed if not after change action

If delete action is not followed by change action, item deletion is not performed because Updater::updateConfig() function prematurely returns.

Example (assuming we have a field_field_example attached to a node as a starting point):

core.entity_form_display.node.page.default:
  expected_config: {  }
  # does not work without a patch, because "change" action is not present
  update_actions:
    delete:
      content:
        field_field_example: 0
core.entity_view_display.node.page.default:
  expected_config: {  }
  # this works as there is delete action followed by a change action
  update_actions:
    change:
      content:
        body:
          weight: 150
    delete:
      content:
        field_field_example: 0