Don't use an attr for AppStream

guides/common/modules/proc_configuring-a-host-to-use-the-pull-client.adoc

@@ -12,10 +12,10 @@ The `katello-pull-transport-migrate` package installs `foreman_ygg_worker` and Y
 For more information, see {InstallingSmartProxyDocURL}configuring-remote-execution-for-pull-client_{smart-proxy-context}[Configuring pull-based transport for remote execution] in _{InstallingSmartProxyDocTitle}_.
 include::snip_prerequisite-project-client-repository-enabled.adoc[]
 ifdef::foreman-el[]
-* The {client-clevis-repository} repository is available for the host.
+* The AppStream repository is available for the host.
 endif::[]
 ifndef::foreman-el[]
-* The {client-clevis-repository} repository for the operating system version of the host is synchronized on {ProjectServer}, available in the content view and the lifecycle environment of the host, and enabled for the host.
+* The AppStream repository for the operating system version of the host is synchronized on {ProjectServer}, available in the content view and the lifecycle environment of the host, and enabled for the host.
 For more information, see {ContentManagementDocURL}Changing_the_Repository_Sets_Status_for-a-Host-in_{project-context}_content-management[Changing the repository sets status for a host in {Project}] in _{ContentManagementDocTitle}_.
 endif::[]
 * The host can communicate with its {SmartProxy} over MQTT using port `1883`.