GH39759: Remove SNO assisted installer from OKD

Author: mburke5678

installing/installing_sno/install-sno-installing-sno.adoc

@@ -5,12 +5,16 @@ include::modules/common-attributes.adoc[]
 
 toc::[]
 
+ifndef::openshift-origin[]
 include::modules/install-sno-generating-the-discovery-iso-with-the-assisted-installer.adoc[leveloffset=+1]
+endif::openshift-origin[]
 
 include::modules/install-sno-generating-the-discovery-iso-manually.adoc[leveloffset=+1]
 
 include::modules/install-sno-installing-with-usb-media.adoc[leveloffset=+1]
 
+ifndef::openshift-origin[]
 include::modules/install-sno-monitoring-the-installation-with-the-assisted-installer.adoc[leveloffset=+1]
+endif::openshift-origin[]
 
 include::modules/install-sno-monitoring-the-installation-manually.adoc[leveloffset=+1]