code: @Override
  	public void removeByGroupId(long groupId) {
  		for (CPOptionCategory cpOptionCategory : findByGroupId(groupId,
  				QueryUtil.ALL_POS, QueryUtil.ALL_POS, null)) {
  			remove(cpOptionCategory);
  		}
  	}
docs: Removes all the cp option categories where groupId = &#63; from the database.
  
  @param groupId the group ID