Update alerting-rule-templates.md

Remove optional step about connectors,

Author: alaudazzi

reference/fleet/alerting-rule-templates.md

@@ -28,7 +28,6 @@ Alerting rule templates come with recommended, pre-populated values. To use them
 1. Find and open the integration.
 1. On the integration page, open the **Assets** tab and expand **Alerting rule templates** to view all available templates for that integration.
 1. Select a template to open a prefilled Create rule form.
-1. Review and (optionally) customize the prefilled settings, then save and enable the rule.
 
 When you click a template, you get a prefilled **Create Rules** form. You can use the template to create your own custom alerting rule by adjusting values, setting up connectors, and defining rule actions.