code: public void removeSpecification(Specification specification) throws GreenPepperServerException
      {
          if(!specifications.contains(specification))
              throw new GreenPepperServerException( GreenPepperServerErrorKey.SPECIFICATION_NOT_FOUND, "Specification not found");
  
          specifications.remove(specification);
          specification.setRepository(null);
      }
docs: <p>removeSpecification.</p>
  
  @param specification a {@link com.greenpepper.server.domain.Specification} object.
  @throws com.greenpepper.server.GreenPepperServerException if any.