They aren't meant to be launched to begin with. Those are saved in the NAND, like System App tie-in titles (like Wifi settings/Data Management/etc., you don't launch them manually) and deleting them will only cause issues if not outright brick your system and require restoring a NAND backup or CTRTransfer. If you try to launch those manually, the system will probably just crash, but it may also on rare cases corrupt them, causing issues.