I searched the net and managed to find a manual revoke from SecuROM site.

https://support.securom.com/PAunlock/index.php?c=1400&exp_serial=1

Why the heck isn't there a revoke tool if it can be done manually?

Why the heck hasn't SecuROM been removed from the Steam version?
Scratch that... why hasn't it been removed from ALL versions?