Remove unexpected dash from previous PR https://github.com/r-geoflow/geoflow/pull/352

[kikislater]

from previous PR https://github.com/r-geoflow/geoflow/pull/352 :

• Remove unexpected dash
• Remove useless comment
• Correct date check for embargo

[kikislater]

Updated drive shit: https://docs.google.com/spreadsheets/d/1wTyq-2sJgdvpTzE4309Lyo1vOac7uIb1dMeHEfKcqbg/edit?usp=sharing and following json : https://github.com/IRDG2OI/geoflow-g2oi/blob/sylvain/Zenodo.json

Results =>

@juldebar