Spawner file does not get deleted on remove command

Summary

When you remove a spawner using the command /mm spawners remove <name>, the spawner file in plugins/MythicMobs/Spawners/ does not get deleted. So it re-appears after restart/reload.

Steps to reproduce

Create a spawner: /mm spawners create <name> <npc> Delete the spawner: /mm spawners remove <name>

Current behavior

The command output sais, that the spawner was deleted, but the spawner file is still there.

Intended correct behavior

The spawner file should also be deleted.

Server log file

There are no obvious errors in the console. Information about the server:

Debug log snippet

[20:42:26 INFO]: Mr_Minecraft15 issued server command: /mm spawners create test testmob
[20:45:53 INFO]: Mr_Minecraft15 issued server command: /mm spawners remove test