Did not remove the vinyl, no need to. Infact, the flooring "expert" at Home Depot suggested using it for a base, but to also buy some inexpensive sticky back tiles to lay down on the wood, thus bringing the entire base level. There was just enough difference between the showing wood strand floor and the vinyl that it might have eventually showed through the new Allure as a ridge line.
Followed her advice and bought enough to lay down over the wood. Allure went down over the vinyl.