feat(alerting): handle all results, even due they have errors

DON'T SWALLOW THE ERR CARL

pkg/services/alerting/engine.go

@@ -101,11 +101,6 @@ func (e *Engine) resultDispatcher() {
 
 	for result := range e.resultQueue {
 		e.log.Debug("Alert Rule Result", "ruleId", result.Rule.Id, "firing", result.Firing)
-
-		if result.Error != nil {
-			e.log.Error("Alert Rule Result Error", "ruleId", result.Rule.Id, "error", result.Error, "retry")
-		} else {
-			e.resultHandler.Handle(result)
-		}
+		e.resultHandler.Handle(result)
 	}
 }