code: @Override
  	public CommercePaymentMethodGroupRel removeByG_E(long groupId,
  		String engineKey) throws NoSuchPaymentMethodGroupRelException {
  		CommercePaymentMethodGroupRel commercePaymentMethodGroupRel = findByG_E(groupId,
  				engineKey);
  
  		return remove(commercePaymentMethodGroupRel);
  	}
docs: Removes the commerce payment method group rel where groupId = &#63; and engineKey = &#63; from the database.
  
  @param groupId the group ID
  @param engineKey the engine key
  @return the commerce payment method group rel that was removed