Entity/Employee.php
public function removeAdsValidation(\Miky\Bundle\AdBundle\Entity\Ad $adsValidation)
    {
        $this->adsValidation->removeElement($adsValidation);
    }
public function removeAdsValidation(\Miky\Bundle\AdBundle\Entity\Ad $adsValidation)
    {
        $this->adsValidation->removeElement($adsValidation);
    }
Remove adsValidation

@param \Miky\Bundle\AdBundle\Entity\Ad $adsValidation