I've went to system settings to uninstall Retroarch CIAs that I've installed and I've noticed that there still were PlaiSysUpdater and TinyFormat. I thought that they were gone because after installing A9LH I couldn't see them on my Home Screen, but when I went to 3DS software management they were still there. The weird part is that the names and icons were more black and there was an "X" sign next to their icons. I've deleted them and everything seems to be normal and everything still works, but were these apps important?