I'm sure there are a few, and a few of them could be disputed as intentional Christensen of a Pagan site. Meaning that the reason they were Christianized didn't have to be to remove the Pagan element.
And there are bound to be a few that have been Christianised without knowledge or interest in their paging past.
Still ends up with such a few sites that to generalize the fact that they where Christianised to remove the pagan past as to be highly debatable.