Model/TranslatableTrait.php
public function removeTranslation(TranslationInterface $translation)
    {
        if ($this->translations->removeElement($translation)) {
            $translation->setTranslatable(null);
        }
    }
public function removeTranslation(TranslationInterface $translation)
    {
        if ($this->translations->removeElement($translation)) {
            $translation->setTranslatable(null);
        }
    }
{@inheritdoc}