This was initially added to prevent problems from stubbed/not implemented NFC services, but as we never encountered such and as it's only used in a deprecated function anyway, I guess we can just remove it to prevent more clutter of the settings.
Using the QtProfileSelectorDialog, this implementation is trivial. This mimics the real switch behavior of asking which user on every game boot, but it is default disabled as that might get inconvenient.
* Fixed conflict with nfp
* Few fixups for nfc
* Conflict 2
* Fixed AttachAvailabilityChangeEvent
* Conflict 3
* Fixed byte padding
* Refactored amiibo to not reside in "System"
* Removed remaining references of nfc from system
* used enum for Nfc GetStateOld
* Added missing newline
* Moved file operations to front end
* Conflict 4
* Amiibos now use structs and added mutexes
* Removed amiibo_path
