Conditionalize the http_server for use in Cloud docs (#358)

Co-authored-by: Michele Cyran <michele@redpanda.com>

Author: JakeSCahill

modules/components/pages/inputs/http_server.adoc

@@ -11,7 +11,7 @@
 component_type_dropdown::[]
 
 
-Receive messages POSTed over HTTP(S). HTTP 2.0 is supported when using TLS, which is enabled when key and cert files are specified.
+Receive messages sent over HTTP using POST requests. HTTP 2.0 is supported when using TLS, which is enabled when key and cert files are specified.
 
 
 [tabs]
@@ -36,7 +36,9 @@ include::components:example$advanced/inputs/http_server.yaml[]
 --
 ======
 
-If the `address` config field is left blank the xref:components:http/about.adoc[service-wide HTTP server] will be used.
+ifndef::env-cloud[]
+If the `address` config field is left blank, the xref:components:http/about.adoc[service-wide HTTP server] is used.
+endif::[]
 
 The field `rate_limit` allows you to specify an optional xref:components:rate_limits/about.adoc[`rate_limit` resource], which will be applied to each HTTP request made and each websocket payload received.