Remove TransportServer preview policy requirement from documentation

docs/content/configuration/transportserver-resource.md

@@ -12,8 +12,6 @@ The TransportServer resource allows you to configure TCP, UDP, and TLS Passthrou
 
 This document is the reference documentation for the TransportServer resource. To see additional examples of using the resource for specific use cases, go to the [examples/custom-resources](https://github.com/nginxinc/kubernetes-ingress/tree/v2.1.1/examples/custom-resources) folder in our GitHub repo.
 
-> **Feature Status**: The TransportServer resource is available as a preview feature[^1]: We might introduce some backward-incompatible changes to the resource definition. The feature is disabled by default. To enable it, set the [enable-preview-policies](/nginx-ingress-controller/configuration/global-configuration/command-line-arguments/#cmdoption-enable-preview-policies) command-line argument of the Ingress Controller.
-
 ## Prerequisites
 
 * For TCP and UDP, the TransportServer resource must be used in conjunction with the [GlobalConfiguration resource](/nginx-ingress-controller/configuration/global-configuration/globalconfiguration-resource), which must be created separately.
@@ -378,9 +376,5 @@ The [ConfigMap](/nginx-ingress-controller/configuration/global-configuration/con
 
 ## Limitations
 
-The TransportServer resource is a preview feature. Currently, it comes with the following limitation:
+The TransportServer resource currently comes with the following limitation:
 * When using TLS Passthrough, it is not possible to configure [Proxy Protocol](https://github.com/nginxinc/kubernetes-ingress/tree/v2.0.1/examples/proxy-protocol) for port 443 both for regular HTTPS and TLS Passthrough traffic.
-
-## Footnotes
-
-[^1]: Capabilities labeled in preview status are fully supported.