[DOCS] minor fix to documentation: http.host can't default to itself (#48135)

fix minor typos on http.host and transport.host default values.

7.x backport of #48135

Author: SylvainJuge

docs/reference/modules/http.asciidoc

@@ -36,7 +36,7 @@ from the outside. Defaults to the actual port assigned via `http.port`.
 
 |`http.publish_host` |The host address to publish for HTTP clients to connect to. Defaults to `http.host` (if set) or `network.publish_host`.
 
-|`http.host` |Used to set the `http.bind_host` and the `http.publish_host` Defaults to `http.host` or `network.host`.
+|`http.host` |Used to set the `http.bind_host` and the `http.publish_host`.
 
 |`http.max_content_length` |The max content of an HTTP request. Defaults to
 `100mb`.

docs/reference/modules/transport.asciidoc

@@ -36,7 +36,7 @@ addressable from the outside. Defaults to the actual port assigned via
 
 |`transport.publish_host` |The host address to publish for nodes in the cluster to connect to. Defaults to `transport.host` (if set) or `network.publish_host`.
 
-|`transport.host` |Used to set the `transport.bind_host` and the `transport.publish_host` Defaults to `transport.host` or `network.host`.
+|`transport.host` |Used to set the `transport.bind_host` and the `transport.publish_host`.
 
 
 |`transport.connect_timeout` |The connect timeout for initiating a new connection (in