gui: should we remove some mentions of RVN and Ravencoin on the overview page?

[fdoving]

(No, this is not my RVN balance, this is all testnet-RVN,)

I was just thinking it might be a littile too much RVN and Ravencoin in this view.

[lsji07]

The only one that is not required imo is the Ravencoin market price nessessarily.

The rest are fit for purpose.