code: @Indexable(type = IndexableType.DELETE)
  	@Override
  	public CommerceTaxFixedRate deleteCommerceTaxFixedRate(
  		long commerceTaxFixedRateId) throws PortalException {
  		return commerceTaxFixedRatePersistence.remove(commerceTaxFixedRateId);
  	}
docs: Deletes the commerce tax fixed rate with the primary key from the database. Also notifies the appropriate model listeners.
  
  @param commerceTaxFixedRateId the primary key of the commerce tax fixed rate
  @return the commerce tax fixed rate that was removed
  @throws PortalException if a commerce tax fixed rate with the primary key could not be found