Technically, this would be possible by overriding the function qa_db_calc_passcheck (from qa-db-users.php) and simply returning the password instead of hashing it. See here for how to do function overrides.
However, I would strongly recommend against doing that, as it is grossly insecure to have passwords stored in plaintext in the database.
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July 25th, 2023: Q2A 1.8.8 released!