code: public void removeRepository(Repository repo) throws GreenPepperServerException
      {
          if(!repositories.contains(repo))
          {
              throw new GreenPepperServerException( GreenPepperServerErrorKey.REPOSITORY_NOT_FOUND, "Repository not found");
          }
  
          repositories.remove(repo);
          repo.setProject(null);
      }
docs: <p>removeRepository.</p>
  
  @param repo a {@link com.greenpepper.server.domain.Repository} object.
  @throws com.greenpepper.server.GreenPepperServerException if any.