engine: resources: Simplify the Watch loop

I had some legacy unnecessary boolean for sending everywhere. Not sure
why I never re-read it, it's so easy to just copy and paste and carry
on.

engine/resources/timer.go

@@ -91,21 +91,16 @@ func (obj *TimerRes) Watch(ctx context.Context) error {
 
 	obj.init.Running() // when started, notify engine that we're running
 
-	var send = false // send event?
 	for {
 		select {
 		case <-obj.ticker.C: // received the timer event
-			send = true
 			obj.init.Logf("received tick")
 
 		case <-ctx.Done(): // closed by the engine to signal shutdown
 			return nil
 		}
 
-		if send {
-			send = false
-			obj.init.Event() // notify engine of an event (this can block)
-		}
+		obj.init.Event() // notify engine of an event (this can block)
 	}
 }