Delete some dead code from PeerGroup
Delete some dead code from PeerGroup

haxwell/bitcoinj,jife94/bitcoinj,haxwell/bitcoinj,veritaseum/bitcoinj,peterdettman/bitcoinj,natzei/bitcoinj,langerhans/dogecoinj-new,HashEngineering/digitalcoinj,tangyves/bitcoinj,janko33bd/bitcoinj,kmels/bitcoinj,yenliangl/bitcoinj,patricklodder/bitcoinj,therightwaystudio/fork_bitcoinj,stonecoldpat/bitcoinj,dcw312/bitcoinj,dexX7/bitcoinj,jdojff/bitcoinj,marctrem/bitcoinj,yenliangl/bitcoinj,you21979/bitcoinj,rootstock/bitcoinj,kmels/bitcoinj,jdojff/bitcoinj,HashEngineering/groestlcoinj,tjth/bitcoinj-lotterycoin,HashEngineering/groestlcoinj,GroestlCoin/groestlcoinj,HashEngineering/darkcoinj,HashEngineering/darkcoinj,akonring/bitcoinj_generous,HashEngineering/darkcoinj,peacekeeper/bitcoinj,patricklodder/bitcoinj,cpacia/bitcoinj,GroestlCoin/groestlcoinj,HashEngineering/dashj,HashEngineering/groestlcoinj,haxwell/bitcoinj,peterdettman/bitcoinj,nikileshsa/bitcoinj,dalbelap/bitcoinj,HashEngineering/dashj,jdojff/bitcoinj,MrDunne/bitcoinj,jife94/bitcoinj,cpacia/bitcoinj,Enigmachine/btcjwork2,natzei/bitcoinj,oscarguindzberg/bitcoinj,stonecoldpat/bitcoinj,HashEngineering/dashj,tangyves/bitcoinj,kurtwalker/bitcoinj,kurtwalker/bitcoinj,GroestlCoin/groestlcoinj,kurtwalker/bitcoinj,bitsquare/bitcoinj,patricklodder/bitcoinj,framewr/bitcoinj,bitcoinj/bitcoinj,VishalRao/bitcoinj,HashEngineering/digitalcoinj,veritaseum/bitcoinj,blockchain/bitcoinj,rnicoll/bitcoinj,stonecoldpat/bitcoinj,jife94/bitcoinj,greenaddress/bitcoinj,HashEngineering/dashj,tangyves/bitcoinj,oscarguindzberg/bitcoinj,imzhuli/bitcoinj,janko33bd/bitcoinj,tjth/bitcoinj-lotterycoin,tjth/bitcoinj-lotterycoin,schildbach/bitcoinj,HashEngineering/digitalcoinj,schildbach/bitcoinj,veritaseum/bitcoinj,langerhans/bitcoinj-alice-hd,you21979/bitcoinj,you21979/bitcoinj,paulminer/bitcoinj,designsters/android-fork-bitcoinj,cpacia/bitcoinj,bitcoinj/bitcoinj,strawpay/bitcoinj,szdx/bitcoinj