Voilà ce que j'ai trouvé sur internet, testé et approuvé
player.drop CEDA6 1
(je pense que ça peut marcher aussi avec
player.removeitem CEDA6 1 mais il est supprimé et non laché comme ici)
Just in case you have any other items you cant drop but don't otherwise need:
player.showinventory
That will give you a list of all items you carry and their IDs.
Just find the item you want removed and use the command, like this:
player.drop ID 1
the "1" at the end denotes number of items to be dropped (just in case there's more than just one)
IDs actually have 8 digits but the first three are 000 so you can ignore them, the game knows what you mean