bin/tnrs_db: removed no longer needed explicit population of the Time_submitted, which is now done automatically by the tnrs table. however, this requires starting the transaction before submitting data, so Time_submitted is correctly set to the submission time rather than the insertion time. the setting of the correct time can be tested by inserting `time.sleep(n_sec)` after the TNRS request and checking that the Time_submitted is close to the time tnrs_db was run instead of n_sec seconds later.
bin/tnrs_db: removed no longer needed explicit population of the Time_submitted, which is now done automatically by the tnrs table. however, this requires starting the transaction before submitting data, so Time_submitted is correctly set to the submission time rather than the insertion time. the setting of the correct time can be tested by inserting `time.sleep(n_sec)` after the TNRS request and checking that the Time_submitted is close to the time tnrs_db was run instead of n_sec seconds later.