How can I remove the weapon awards in my maps?

The lines that set up award weapons are in the Common side. Check out your weapon's common odf and delete the ScoreForMedalsType and MedalsTypeToLock lines from there. I haven't done it in awhile, but I'm pretty sure that's gonna work.

That just prevents the normal weapon from being locked out. You have to do the same to the award weapons so they can't be unlocked.