
+ 3ds
+ files9
+ hblauncherloader
+ luma
+ Nintendo 3DS
+ arm9loaderhax.bin
+ boot.3dsx
You can delete the System Volume Information folder, I don't know what that "OCDM" folder so I can't say anything about that. You can also delete the "freeshop" folder since it's already obsolete(the latest one is getting data inside the "3ds/data" folder). Themes folder maybe removed only if you don't use any themes, otherwise, let it be there.