So question is: What actuality happens if Armory is used and wallet deleted from after use by pressing Delete/Remove Wallet button on the Wallet Properties screen?
The wallet file from your Armory datadir will be deleted as well.
The file name should be similar to "
armory_xxxxxxxx_encrypt.wallet".
Here's a related topic with sufficient answers:
Delete/Remove Wallet - shred/overwrite, or merely filesystem delete?