Fuel cell outputs show up on PV-Battery systems

@cpaulgilman, @brtietz - While going through this issue, I discovered the data tables output for PV-Batt / Res configuration includes Fuel cell outputs 
![image](https://user-images.githubusercontent.com/6498311/105842906-2970f800-5f94-11eb-9767-46ea650ae902.png)

_Originally posted by @sjanzou in https://github.com/NREL/SAM/issues/496#issuecomment-767499439_