Help! Need to delete 2000+ profiles

Adobe Photoshop Lightroom 4.1

I've installed 2000+ profiles in my Lightroom. If I want to delete them, I can only right click on a profile to delete it. So, this will take a lot of time to delete all 2000+ profiles. Why is ist not possible to delete them in batch (deleting the whole folder). With the presets, this is possible. For presets, I just right click on the group and delete the whole group.