Remove PB hardware requests (#6767)
Remove PB hardware requests (#6767)

Because @ezdiy has one (or more?) and is doing a great work with it.

I also have one (Touch HD3) which I don't use and I don't plan to use, so it's available for any contributor that wants to tinker with the platform. Thanks to @Cellaris for providing the device :smile:
koreader/koreader,poire-z/koreader,poire-z/koreader,NiLuJe/koreader,Frenzie/koreader,mwoz123/koreader,Hzj-jie/koreader,Markismus/koreader,koreader/koreader,NiLuJe/koreader,Frenzie/koreader,pazos/koreader