Question Is it possible to permanently delete the default worlds?

When you first start up your server you're faced with 3 default worlds, world, world_nether, and world_the_end. When you eventually advance on your server, saying you don't use those worlds of course, and you've no reason to keep them, is it possible to permanently delete these three world files?

 

@OTF Catastrophe You can change the "allow-end" option in the bukkit.yml to false, and it won't generate the end world. I believe if you change the "level-name" in the server.properties to something other than "world" it won't generate the end/nether but I'm not 100% sure on that.

 

@nverdier At least ask him some more details,
@OTF Catastrophe do you want to remove world, world_nether or world_the_end?

 

@MCMatters He wants all of them gone...

 

@nverdier well than level-name

 

Thank you @nverdier the worlds world_nether and world_the_end are gone but it appears that the default world, world, is still there. Not completely sure why it's still there since I changed the level-name. Any ideas?