Issue #2155889 by tim.plunkett: Remove Editor::label().

core/modules/editor/lib/Drupal/editor/Entity/Editor.php

@@ -66,14 +66,6 @@ public function id() {
     return $this->format;
   }
 
-  /**
-   * Overrides Drupal\Core\Entity\Entity::label().
-   */
-  public function label($langcode = NULL) {
-    $format = entity_load('filter_format', $this->format);
-    return $format->name;
-  }
-
   /**
    * Overrides Drupal\Core\Entity\Entity::__construct()
    */