[enterprise-4.20] CNV#65955: Remove tech preview for IBM Z

Author: ousleyp

virt/install/preparing-cluster-for-virt.adoc

@@ -30,14 +30,6 @@ You can use the following platforms with {VirtProductName}:
 //--
 
 * {ibm-z-name} or {ibm-linuxone-name} (s390x architecture) systems where an {product-title} cluster is installed in logical partitions (LPARs). See xref:../../installing/installing_ibm_z/preparing-to-install-on-ibm-z.adoc#preparing-to-install-on-ibm-z_preparing-to-install-on-ibm-z[Preparing to install on {ibm-z-title} and {ibm-linuxone-title}].
-+
---
-ifdef::openshift-enterprise[]
-:FeatureName: Using {VirtProductName} in a cluster deployed on s390x architecture
-include::snippets/technology-preview.adoc[]
-:!FeatureName:
-endif::[]
---
 
 endif::openshift-rosa,openshift-dedicated,openshift-rosa-hcp[]
 
@@ -128,12 +120,6 @@ ifndef::openshift-rosa,openshift-dedicated,openshift-rosa-hcp[]
 
 You can use {VirtProductName} in an {product-title} cluster that is installed in logical partitions (LPARs) on an {ibm-z-name} or {ibm-linuxone-name} (`s390x` architecture) system.
 
-ifdef::openshift-enterprise[]
-:FeatureName: Using {VirtProductName} in a cluster deployed on s390x architecture
-include::snippets/technology-preview.adoc[]
-:!FeatureName:
-endif::[]
-
 Some features are not currently available on `s390x` architecture, while others require workarounds or procedural changes. These lists are subject to change.
 
 [discrete]