How to delete system fields from TM

Hi all,

 

I am trying to delete the system fields from a TM, i.e. I want to get rid of the metadata in my TM that state "created by", "created on" and so forth. I've tried using the batch edit function, selecting "Delete field value" and then "System fields", but to no avail. Does anybody know how this metadata can really be deleted?

Thank you!

Best,

 

Katharina