Remove extra return statement found by go vet.
Remove extra return statement found by go vet.

The return statement was unreachable and thus this change has no
effect on functionality.

tb00/btcd,jrick/btcd,Dirbaio/btcd,CryptocurrencyCabal/htcd,1d4Nf6/btcd,BitGo/prova,Roasbeef/btcd,btcsuitereleases/btcd,jrick/dcrd,ppcsuite/ppcd-old,dajohi/btcd,stevenroose/btcd,glv2/ppcd,1d4Nf6/btcd,runeaune/btcd,adiabat/btcd,Dirbaio/btcd,aakselrod/btcd,ltcsuite/ltcd,toddfries/btcd,cqswxj2013/btcd,CryptocurrencyCabal/htcd,FactomProject/btcd,qchain/btcd,jrick/btcd,dan-da/btcd,sysbot/btcd,adiabat/btcd,DanielKrawisz/btcd,jcmincke/dcrd,danoctavian/btcd,davecgh/btcd,decred/dcrd,BitGo/prova,runeaune/btcd,pkothbauer/btcd,btcsuitereleases/btcd,hectorj/btcd,Cleawing/btcd,jimmysong/btcd,dajohi/btcd,jongillham/btcd,btcsuite/btcd,danoctavian/btcd,FactomProject/btcd,qchain/btcd,ppcsuite/ppcd-old,Evil-Coin/Evil,hectorj/btcd,mathiasrw/btcd,pkothbauer/btcd,cjepson/btcd,wallclockbuilder/btcd,glv2/ppcd,ppcsuite/ppcd,cjepson/btcd,davecgh/btcd,soapboxsys/ombfullnode,soapboxsys/ombfullnode,Cleawing/btcd,jimmysong/btcd,ltcsuite/ltcd,toddfries/btcd,Roasbeef/btcd,DanielKrawisz/btcd,Evil-Coin/Evil,jrick/dcrd,cqswxj2013/btcd,aakselrod/btcd,sysbot/btcd,btcsuite/btcd,jrick/btcd,jcmincke/dcrd,dan-da/btcd,dajohi/btcd,tb00/btcd,mathiasrw/btcd,decred/dcrd,ppcsuite/ppcd,Stash-Crypto/btcd,jcmincke/dcrd,wallclockbuilder/btcd,stevenroose/btcd,Dirbaio/btcd,Stash-Crypto/btcd,jongillham/btcd