I’m not sure what you mean by it won’t delete. There’s nothing in the plugin that prevents it from being deactivated and then deleted.
Well, I am experiencing exactly the same problem here. The plugin can easily be deactivated but not deleted. Never encountered this problem with any other plugin before. Of course, you can delete it manually via ftp, but that’s not how it should be.
Thank you for the report. I took another look and I believe I found the issue (not intentional). I’ve released an updated version that should resolve the problem.