Currently there is no way to remove a disguise without leaving the server and joining back. A command would be nice, surely one exists.
Not too sure what plugin they use for the disguise commands. I know that from playing other servers If you engage in combat or take damage of any sort, you will be undisguised. (This can be used as an alternative method to undisguise yourself until an undisguise command is implemented.) I'm not 100% certain this will work as it would seem based off this post; the disguise plugins from servers I've previously played are different to this one. Also I support this idea.
Thank you for submitting your suggestion. We have decided that we will be implementing this suggestion. Should you have any more suggestions or feedback for how we may improve the network, please feel free to create another thread. Thread moved to archives. Regards, The Staff