CLEANUP: Remove unused function in net/service/messagesender.go.
CLEANUP: Remove unused function in net/service/messagesender.go.

OpenBazaar/openbazaar-go,OpenBazaar/openbazaar-go,gubatron/openbazaar-go,gubatron/openbazaar-go,gubatron/openbazaar-go,OpenBazaar/openbazaar-go