bitcoinrpc.cpp: Removed outdated comment
bitcoinrpc.cpp: Removed outdated comment

Fixes #1373

LambocoinFoundation/Lambocoin,TheNameIsNigel/paycoin,thommyV91/Suck-a-Coin,LambocoinFoundation/Lambocoin,Iamhumanareyou/EmprendeCoin,ligerzero459/paycoin,Iamhumanareyou/EmprendeCoin,mitchellcash/paycoin,IngCr3at1on/paycoin,ligerzero459/paycoin,TheNameIsNigel/paycoin,Iamhumanareyou/EmprendeCoin,ligerzero459/paycoin,thommyV91/Suck-a-Coin,thommyV91/Suck-a-Coin,PaycoinFoundation/paycoin,LambocoinFoundation/Lambocoin,Iamhumanareyou/EmprendeCoin,mitchellcash/paycoin,IngCr3at1on/paycoin,IngCr3at1on/paycoin,ligerzero459/paycoin,IngCr3at1on/paycoin,thommyV91/Suck-a-Coin,TheNameIsNigel/paycoin,PaycoinFoundation/paycoin,mitchellcash/paycoin,PaycoinFoundation/paycoin,TheNameIsNigel/paycoin,LambocoinFoundation/Lambocoin,mitchellcash/paycoin,PaycoinFoundation/paycoin