Bit of a follow up question: what exactly is your goal? Remove the lock quickly/cheaply or to actually have a secure/sturdy suitcase?
Is it in case it gets stolen or to avoid accidental damage?
I guess overall just why is having the lock an issue for you? I can think of many reasonable ones (I don't like them either) just want to know which one it is for you.
Cool, in that case using super glue on the lock should block that up enough that people won't be able to use it any more, and it should be much cheaper than buying anything new.
When it comes to keeping people out though, do keep in mind that no realistically usable suitcase will prevent access once someone has access to some basic tools and privacy.