Remove Faravahar from code

As stated at tpo/core/tor#40688 (closed), we should also remove Faravahar here.

I think it's used in bwauthealth/bwauthealthpr/settings/base.py and bwauthealth/bwauthealth/util.py

added Icebox label

added First Contribution label

fyi Faravahar is coming back (with new keys and address): tpo/core/tor#40689 (closed)