lncli stopand wait for the process to shut down completely, for example by observing the logs.
lnd.conffile (check if unsure), all the data necessary for your migration is in your
~/.lnddirectory. This will regenerate them when you first start up your migrated node. You may also delete your macaroon files together with the
~/.lnd/data/chain/bitcoin/mainnetto make sure any old copies are invalidated. Deleting the macaroon files alone does not invalidate them.