The same addresses/keys?
I don't know and wont be able to check for a few hours.
But either way, is there no way to get rid of the unwanted wallet (whatever the addresses\keys)?
Sure there is just delete the files. I would be very strange if Multibit could restore the deleted wallet. Id bet (not actually) that it just makes you a new one if no wallet is found.
Whats your goal anyway? Do you want to start MultiBit w/o a wallet?