MVPortal removed = this.portals.remove(portalName);
MultiverseWorld world = this.plugin.getCore().getMVWorldManager().getMVWorld(removed.getWorld());
removeFromWorldChunkPortals(world, removed);
removed.removePermission();
Permission portalAccess = this.plugin.getServer().getPluginManager().getPermission("multiverse.portal.access.*");
Permission exemptAccess = this.plugin.getServer().getPluginManager().getPermission("multiverse.portal.exempt.*");
Permission portalFill = this.plugin.getServer().getPluginManager().getPermission("multiverse.portal.fill.*");
if (exemptAccess != null) {
exemptAccess.getChildren().remove(removed.getExempt().getName());