events: be nice to Sprintf

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>

events/emitter.go

@@ -63,7 +63,3 @@ func (e *Emitter) Remove(clientID string) {
 	}
 	e.m.Unlock()
 }
-
-func (e *Emitter) Close() error {
-	return e.broadcaster.Close()
-}

events/sink.go

@@ -54,6 +54,5 @@ func (s *eventSink) Write(evt goevents.Event) error {
 }
 
 func (s *eventSink) Close() error {
-	close(s.ch)
 	return nil
 }