The Fuji X100S uses built-in lens profile supplied in the raw files, themselves, so Adobe applies the profile automatically and it cannot be turned off.
There is no indication of the profile being applied in Lightroom but the recent versions of the Camera Raw plug-in for Photoshop will indicate that a built-in profile is being used:
Thank-you for your answer.
But in my case, using Camera Raw for CS6, I have only one the possibility to choose a profile for Fujifilm (diferent from X100S), and the program don't permit me to charge any other profile for Fujifilm.
This is not the case for other lens that I use like of Canon, Tamron, Zeiss...
The profile is built-in so it is not something you can choose. It is always applied.
Adding to what ssprengel said, the reason why you can't choose your own lens is because there's no need to; the X100S is a superzoom. It has a permanent, fixed lens. Camera Raw is merely applying the permanent lens' profile.