Remove --log-level-net-plugin debug from python unit tests
Remove --log-level-net-plugin debug from python unit tests

This option is already a NOOP, so remove it entirely from the unit tests so it can be entirely removed. Though, it is rather unfortuate that the scripts are not modified to use a logging.json to retain the debug print verbosity now

EOSIO/eos,EOSIO/eos,EOSIO/eos,EOSIO/eos,EOSIO/eos