[Question] eth/backend: unused `server` field

[trung]

I noticed there's an unused field server in Ethereum struct (line 72)

go-ethereum/eth/backend.go

Lines 66 to 73 in 67bfc93

	type Ethereum struct {
	config *Config
	// Channel for shutting down the service
	shutdownChan chan bool
	server *p2p.Server

Is it a place holder to be used in the future?

[karalabe]

Please open a PR to remove it.