public static Genotype removePLs(Genotype g) {
   Map<String, Object> attrs = new HashMap<String, Object>(g.getAttributes());
   attrs.remove(VCFConstants.PHRED_GENOTYPE_LIKELIHOODS_KEY);
   attrs.remove(VCFConstants.GENOTYPE_LIKELIHOODS_KEY);
   return new Genotype(
       g.getSampleName(),
       g.getAlleles(),
       g.getLog10PError(),
       g.filtersWereApplied() ? g.getFilters() : null,
       attrs,
       g.isPhased());
 }