eth, light: minor light client startup cleanups

eth/downloader/downloader.go

@@ -266,7 +266,6 @@ func (d *Downloader) Synchronising() bool {
 // RegisterPeer injects a new download peer into the set of block source to be
 // used for fetching hashes and blocks from.
 func (d *Downloader) RegisterPeer(id string, version int, peer Peer) error {
-
 	logger := log.New("peer", id)
 	logger.Trace("Registering sync peer")
 	if err := d.peers.Register(newPeerConnection(id, version, peer, logger)); err != nil {