Removed tech preview for externally managed certificates

Author: subhtk

modules/nw-ingress-route-secret-load-external-cert.adoc

@@ -6,9 +6,6 @@
 [id="nw-ingress-route-secret-load-external-cert_{context}"]
 = Creating a route with externally managed certificate
 
-:FeatureName: Securing route with external certificates in TLS secrets
-include::snippets/technology-preview.adoc[]
-
 You can configure {product-title} routes with third-party certificate management solutions by using the `.spec.tls.externalCertificate` field of the route API. You can reference externally managed TLS certificates via secrets, eliminating the need for manual certificate management. Using the externally managed certificate reduces errors ensuring a smoother rollout of certificate updates, enabling the OpenShift router to serve renewed certificates promptly. 
 
 [NOTE]