LONDON (Reuters) - Failure to pass the government s flagship piece of Brexit legislation through parliament will result in holes in the statute book and increased uncertainty, two junior British ministers said on Thursday.  This bill is about how we leave, it s about delivering certainty and continuity in the law as we leave the European Union,  said Steve baker, a minister in the Brexit department.  If this bill were not to pass ... then of course there would be holes in the statute book. The result would be that the statute book would not function as intended.     