Issue #2479815 by plach: Remove obsolete ContentEntityInterface::initTranslation() method

core/lib/Drupal/Core/Entity/ContentEntityBase.php

@@ -759,15 +759,6 @@ public function removeTranslation($langcode) {
     }
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function initTranslation($langcode) {
-    if ($langcode != LanguageInterface::LANGCODE_DEFAULT && $langcode != $this->defaultLangcode) {
-      $this->translations[$langcode]['status'] = static::TRANSLATION_EXISTING;
-    }
-  }
-
   /**
    * {@inheritdoc}
    */

core/lib/Drupal/Core/Entity/ContentEntityInterface.php

@@ -26,16 +26,4 @@
  * @ingroup entity_api
  */
 interface ContentEntityInterface extends \Traversable, FieldableEntityInterface, RevisionableInterface, TranslatableInterface {
-
-  /**
-   * Marks the translation identified by the given language code as existing.
-   *
-   * @param string $langcode
-   *   The language code identifying the translation to be initialized.
-   *
-   * @todo Remove this as soon as translation metadata have been converted to
-   *    regular fields.
-   */
-  public function initTranslation($langcode);
-
 }