You can.
1. Trash them
2. Dump them in your locker.
3. Dump them in the dumpster
4. Ignore them
You did mention they were unsoulbound. If that had been a typo, they you can
unsoulbind them.
It's probably best to try to ask the staff in Site Feedback or during the Ask the Staff that was scheduled for March next week for tomorrow's was cancelled. I don't think they even bother going into this forum any longer. However, I have a feeling that this has been asked several times so the question will just get ignored. You can check by going through the archives or this guild.
http://www.gaiaonline.com/guilds/viewforum.php?f=1430647